CN102139426B - Flux-cored wire forming unit and production method for flux-cored wires - Google Patents

Abstract

The invention discloses a flux-cored wire forming unit which comprises a forming machine and a wire spooling device; the forming machine comprises a plurality of rolling frames, a powder feeder and a feeding system, wherein the rolling frames are passive; and an outlet speed-stabilizing device is arranged in front of the wire spooling device which is a tensionless wire spooling device. The invention also discloses a method for producing welding wires by using the forming unit. The invention also discloses another flux-core wire forming unit which comprises a forming machine and a wire spooling device, wherein the forming machine comprises a plurality of rolling frames, a power feeder and a feeding system; the rolling frames are in centralized transmission type; the power source of the rolling frames transmits power to rollers by a centralized transmission shaft and a mechanical variable-speed device; and the another flux-core wire forming unit is characterized in that an outlet speed-stabilizing device is arranged in front of the wire spooling device which is a tensionless wire spooling device; and the outlet speed-stabilizing device and the rolling frames share the same power source. The flux-cored wire forming units and the method for producing the welding wires can stabilize the overall running speed of the welding wires, so as to improve the production quality of the welding wires.

Description

Flux-cored wire forming machine group and flux-cored wire production method

Technical field

The invention belongs to the production technical field of welding wire, particularly flux-cored wire forming machine group and flux-cored wire production method.

Background technology

1, on October of cut-off to 2010, occurring these two conditions of " flux-cored wire " four words in take Main classification number as B23K35/40 (being that specific name is as " manufacturing of soldering or welding wire or welding rod ") and specification retrieves, can find that the invention disclosed patent is as follows in China: 1) CN93115833.8, with the milling method of dish circle manufacturing flux-cored wire; 2) CN96117079.4 utilizes the method for ceramic production device synchronous production welding rod; 3) CN97102700.5, process for manufacturing welding wire; 4) CN200410043645.X, automation ceramic tubular silk material throwing equipment and throwing method; 5) CN200410097611.9, the compatible method of making nano coating continuous welding electrode, short welding rod; 6) CN200610058129.3, cored welding electrode and manufacture method thereof; 7) CN200610111508.4 is used for the manufacture method and products thereof of the flux-cored wire of soldering stainless steel; 8) CN200610069557.6, a kind of method of utilizing offcut of steel plate to produce welding material; 9) CN200710078814.7 is for the manufacture of the method such as the welded tubes filled with powder of flux-cored wire; 10) CN200710056707.4, a kind of technique that adopts the dish round steel wire to make flux-cored wire; 11) CN200710114456.0, method for manufacturing flux-cored wire; 12) CN200910061623.9, filling rate on-line measurement control method and the device of flux-cored wire forming machine; 13) CN200910097003.0, the manufacture method of flux cored wire employing wet-mixing sintered medicinal powder; 14) CN200910250700.5, surface treatment method and device during the flux-cored wire drawing is made; 15) CN200810068960.6, passive flux-cored wire forming machine; 16) CN200910191653.1, the oiling of flux-cored wire surface clean and device thereof; 17) CN201010003697.X, the manufacture method of flux-cored wire; 18) CN200410057948.7 is for the manufacture of the method for seamed flux core welding wire; 19) CN201010111030.1, the placement method of solder flux.

Wherein CN96117079.4, CN200410097611.9, CN200610069557.6 main disclosed be method or the equipment that utilizes some raw material or device fabrication welding rod, mention in specification that just these methods can avoid the high manufacturing cost of flux-cored wire, producing a kind of performance can be near the welding material of flux-cored wire, " flux-cored wire " four words are just mentioned in background technology, and are not patent object to be dealt with.Thus, these three patents can not be listed the production technology category of flux-cored wire in.

The emphasis of CN200710114456.0 and CN200910097003.0 then is to introduce the prescription of the used medicinal powder of flux-cored wire and the production process of medicinal powder, is not at flux-cored wire production line or perhaps flux-cored wire forming machine field great breakthrough to be arranged.

CN93115833.8 has introduced a kind of employing dish round steel wire and has made flux-cored wire technique, mainly be to be included on the dish round steel wire to roll out U-shaped groove, add powder, heal up, the steps such as tube reducing, its main feature is to need not to carry out the intermediate annealing link, but decrease production cost, but in fact this patent is through after examining, its statutory status is " deemed withdrawal of patent application ", although it is not that what reason is regarded as recalling certainly for we actually, but it is once short-lived in the middle and later periods nineties in last century to consider that disc-method is directly produced flux-cored wire without annealing, but to this century almost make no public appearances, in more than 100 flux-cored wire production line at home, adopt disc-method to produce less than 10% this fact of flux-cored wire, can think that fully the practicality of this method is not good enough, produce flux-cored wire in cost and steel band method and compare in the situation that clear superiority is arranged, the method adopts in other words conj.or perhaps this thinking to make flux-cored wire and does not still significantly popularize.Because the dish round steel wire is after rolling out U-shaped groove, its flow harden is very serious, is difficult to carry out the later operation of healing up, and is easy to occur longitudinally crack, and this technology has the obstacle that is difficult to overcome.Unfavorable reason as for other is then illustrated in CN200710056707.4.So after this patent was also very likely listed some the reasons that do not possess novelty, creativeness or practicality by auditor's notice, the applicant abandoned answering suggestion and is regarded as recalling.

What CN200710056707.4 introduced is the technique that another employing dish round steel wire is made flux-cored wire, mainly be to utilize cold continuous rolling will coil round steel wire to be rolled into flux-cored wire Special precision steel band, and annealed being heat-treated to as being easy to by the steel band raw material of common forming machine and wire drawing machine use.It focuses on how making this flux-cored wire Special precision steel band, which type of material to make steel band with, how to control relevant technological parameter etc.This patent mainly is that the preparation method at flux-cored wire Special precision steel band has had great technological break-through, and wherein mention to finish the half-finished production of flux-cored wire also be with existing common tandem rolling formula flux-cored wire forming machine or roll the flux-cored wire forming machine that pulls out one with the flux-cored wire forming machine group, at this equipment of flux-cored wire forming machine significant breakthrough is not arranged yet.

CN200910250700.5 and CN200910191653.1 disclose two kinds of lubricants of removing in the flux-cored wire drawing process, and be coated with and be covered with the new welding wire manufacture method that is used for reducing in welding the new lubricant of wire-feeder resistance, focus on the later stage surface treatment of welding wire, also irrelevant with flux-cored wire forming machine.

CN200910061623.9 and CN201010111030.1 are the patents about the powder feeding link of flux-cored wire production process, CN200910061623.9 proposes by material pipe in the middle of having set up a section in the feeding system that is controlled at flux-core wire powder feeder, and in this centre material pipe, level sensor and lower level sensor have been installed, next with the medicinal powder Weight control of weight load on belt within the specific limits, and the detection by the loading and unloading level sensor, guarantee the monitoring of medicinal powder flow, add speed measuring device of steel belt and measure the online monitoring method that steel belt operating speed is realized filling rate; So the main feature of CN201010111030.1 is then after sending medicinal powder (being referred to as solder flux in the patent original text) layer from the powder feeding belt, the medicinal powder layer impacts on the baffle plate on the powder feeding belt opposite, and through in the baffle plate downward Uniform Flow U-shaped channel-section steel band in the motion, mainly be that the formed medicinal powder in the medicinal powder process that utilizes above-mentioned impact and dropping process to destroy in original medicinal powder layer lumps, guarantee the even of powder feeding process, and then guarantee the stability of filling rate and the quality of flux-cored wire.Although above-mentioned two inventions are undeniable to the improvement of powder feeding technology, also only are the improvement for powder feeder, and are not the innovation for the global design of whole flux-cored wire forming machine.

Then be foreign enterprise or the patent of declaring in order to capture the intellectual property position in the Chinese flux-cored wire production technology in China's foreign Investment enterprise as for CN97102700.5, CN200610058129.3, CN200610111508.4, CN200710078814.7, CN201010003697.X, CN200410057948.7:

CN97102700.5 is that Japanese iron welds the patent that the mode of the use heated by electrodes that Industrial Co., Ltd declares heats to realize intermediate annealing and removes the H constituent content in the medicinal powder seamless welding wire.

CN200610058129.3 then is wire feed lubricant and the composition of wire feed lubricant and the technology controlling and process relevant with coating wire feed lubricant about using when the finished product welding wire applies welding that U.S. Lincoln Global Inc. declares, and belongs to the process of surface treatment of welding wire;

CN200610111508.4 is the patent about the manufacturing process of stainless steel welding stick that Kiswel Co. Ltd. of Korea S declares, and key step comprises moulding, rough, bright annealing and finish draw etc., lays particular emphasis on the drawing process of flux-cored wire.

CN200710078814.7 be French liquia air welding company China declare about use the slit seam after laser weld is healed up seamed cored wire and reduce the technique class patent aspect the destruction of the medicinal powder in the steel-tape sheath as far as possible, can obtain the sealing effectiveness suitable with seamless flux-cored wire, be not the significant improvement to flux-cored wire forming machine yet.

CN201010003697.X is the patent of the Japanese kobe steel flux-cored wire production process class of declaring, and the inner surface that main contents twist in welding wire for the burr that will form after the cutting of flux-cored wire special steel strip and overlap is to guarantee welding wire surface fineness.

CN200410057948.7 is the patent of the Japanese kobe steel flux-cored wire production process class of declaring, mainly lay particular emphasis on from the first of welding wire and pull to finished diameter or during close to finished diameter, omnidistance roller die wire drawing and the high pressure lubricant that uses sulfenyl of using.

In addition, CN200410043645.X is the patent of the Harbin Institute of Technology flux-cored wire production equipment aspect of declaring, and its summary is as follows:

A kind of automation ceramic tubular silk material throwing equipment and throwing method, it relates to a kind of medicine core Spray Wire and the equipment of the flux-cored wire of welding usefulness and the production technology of medicine core Spray Wire and flux-cored wire of making spraying usefulness.The right side of the hot candied hub in body of the present invention upper end is disposed with hot candied builder, medicine core powder injection device, medicine core silk skin apparatus for shaping, medicine core silk skin smoothing decontamination plant and directive wheel.The medicine core dusty material that stirs is packed in the medicine core powder injection device.Hot candied speed is that per minute 30～35 turns, and it refers to the rotating speed of hot candied hub.Equipment of the present invention has multiple functional, and is applied widely, practical; Automaticity is high, and serviceability is reliable, and the throwing quality is good; Silk producing procedures is few, and production efficiency is high, and volume is little, conveniently moving; The throwing method has easy grasp, only needs the advantage that the people just can produce.

Its applicable object is the small business of research institutions or production spraying wire; it mainly is the flux-cored wire for the production small lot; and do not mention in this patent how medicine core powder injection device drives; and at present dust feeder how to drive, to the how powder feeding of the U-shaped groove of steel band; guaranteeing that a stable filling rate has become the important topic that the flux-cored wire manufacturing industry is faced, and this part patent does not relate to fully.In addition, this patent does not mention how welding wire or spraying wire rod being carried out rolling yet, just mentioned wire rod has been carried out drawing with hot candied hub, how to process as for after the drawing, that is just unknown, according to its disclosed data, can only say that the workman is manual several kilograms on the hot candied hub or tens kilograms of silk materials are unloaded.But for the enterprise of industrialized mass flux-cored wire, be not only a very necessary thing with the welding wire rolling, how rolling also is a very important problem with the velocity-stabilization that guarantees the complete machine operation.So on the definite meaning, if what do not consider that this patent will face is flux-cored wire or the spraying wire of research, trial-production, exploitation small lot, unexposed introduction is this link of rolling how, cause the technical scheme of this patent and imperfect, lack practicality.

Be a kind of " passive flux-cored wire forming machine " that the space flight South Sea, Guizhou mechanical ﹠ electrical corporation declares as for CN200810068960.6, its clip Text is as follows:

A kind of passive flux-cored wire forming machine, belong to the Steel Wire Products Industry electromechanical equipment, it is by 7-8 group vertical roller and 5-6 group horizontal roll, core wire medicinal powder powder adding device and frame form, roll cross sectional shape structure at powder adding device first three groups vertical roller is U-shaped, respectively establish one group of horizontal roll before and after the powder adding device, the back of powder adding device is provided with its alternate setting with horizontal roll of 4-5 group vertical roller, this forming machine runnability is stable, compact conformation is concentrated, noise is little easy to maintenance, simple to operately need not the former that motor-driven is a kind of efficient low-consume energy-conserving and environment-protective.

With regard to its disclosed clip Text and its claim 1, we do not find what is than the more advanced or unusual part of flux-cored wire forming machine that generally adopts in the industry, but because the final examination result of this invention is not yet open, so we can't just say outstanding substantive distinguishing features and significantly progress that it does not have patent of invention to possess, we can not just say now that more this patent has outstanding substantive distinguishing features and significant progress that patent of invention should possess certainly.

At home in the flux-cored wire manufacturing enterprise, except a small amount of employing disc-method produce flux-cored wire and minute quantity with the steel pipe method produce seamless flux-cored wire, what overwhelming majority enterprise all adopted is that the steel band method is produced flux-cored wire, the basic step that the steel band method is produced flux-cored wire comprises: be that steel band about 10mm～20mm is rolled into U-shaped groove with width, in U-shaped groove, fill medicinal powder, the U-shaped steel band of populated medicinal powder is healed up, welding wire after healing up is rolled and/or the drawing tube reducing, produces the finished product welding wire.

Under these basic ideas instructed, according to the kind of drive and the machine construction of flux-cored wire forming machine, domestic flux-cored wire forming machine mainly was divided into following four major sects:

1, Japanese good fortune is known mountain system: this equipment mainly is that the nineties in last century Japan good fortune knows that mountain company is input to the flux-cored wire production equipment of China, and is digested and assimilated by part domestic enterprise.Represent according to disclosed data, this equipment 25 flux-cored wire production lines of having gone into operation at home, this numeral also only is the domestic equipment of directly buying to Japan, do not calculate the imitated equipment of domestic enterprise, if consider the number of devices of domestic imitation, this numeral should reach more than the thirty or forty bar.

The main feature of this equipment is: for forming machine, adopted moulding flat-rolled frame interval mode initiatively, be adjacent per two in forming machine flat-rolled frame, have one dynamic, another does not have power, and in each dynamic moulding flat-rolled frame, two roll mandrels that are coated with roll are the power drives that is come by the Hooks coupling universal coupling transmission by separately simultaneously up and down, drive roll to the moulding of welding wire and tentatively tube reducing be rolled.And every flat-rolled support body of this forming machine is long-pending larger, the adjustment axle of topping roll bearing block is installed at the top of frame, rotate this adjustment axle and arrive the topping roll bearing block by one group of gear driving pair or Worm Wheel System adjutant transmission of power, realize that the adjustment of topping roll bearing block also compresses steel band or welding wire.

But the volume of every flat-rolled frame of this forming machine is larger, not only causes the manufacturing difficulty of the part of flat-rolled frame own, and the accuracy of manufacture is difficult for assurance, but also causes floor space large, and equipment cost rises.In addition, for dynamic forming machine flat-rolled frame, two rolls simultaneously initiatively up and down, although can guarantee enough roll-forces, for the roll that machining forms, only can guarantee that also the rolling working face of two rolls is consistent as much as possible with respect to the radius at roll center up and down, can not guarantee that the radius of the two is in full accord, like this for the top and bottom rolls that drives with identical rotating speed, the roll line speed of top and bottom rolls is not quite identical, can cause in the closed interval of the roll line speed that the welding wire that is rolled or steel band actual speed be in top and bottom rolls, topping roll, steel band or welding wire, bottom roll three's linear velocity can not be in full accord, inevitably will produce skidding between two different surfaces of speed so wherein.So just affect the surface quality of welding wire, increased the drawing resistance of drawing procedure afterwards, also increased the frictional resistance that the welding wire when welding moves simultaneously among plastic tube, affected the Wire Performance of welding wire.

2, Tianjin bridge system: Tianjin bridge welding wire company has introduced the flux-cored wire production line of the U.S. hobart company nineties in last century, and digest and assimilate, formed the flux-cored wire main production equipments of oneself, according to the quantity of its oneself equipment and export trade, the quantity of this flux-cored wire forming machine also should reach the thirty or forty platform.

The main feature of this equipment is: the type of drive of forming machine is focus driving, namely adopt a larger motor of power to slow down and output through deceleration device, drive a central driving axle and pass all flat-rolled frame and powder feeders in the flux-cored wire forming machine, each flat-rolled frame or powder feeder are transformed to own required speed with different gear ratio with this speed more again, but this design has quite high requirement with regard to the rolling surface radius of breaker roll and the sectional area of roll pass, in case precision can not guarantee, just is easy to cause machine thoroughly just can not turn or the significant decline of product quality.Because in a single day pass has obvious error, the sectional area of the rolling surface that welding wire or steel band passed through so just changes, and the volume flow of steel band or welding wire is stable, the speed that goes out at this roll of steel band or welding wire just certainly leads to variation so, velocity ratio between each roll also must change, and the radius of the linear velocity of roll rolling surface to be rotating speed by roll multiply by roll rolling surface guarantees, and the rotating speed of roll is crossed by the central driving beam warp that the speed change gear conversion of each flat-rolled frame comes, and this speed but is to be difficult to change.Even change, also can only be by changing the mode of the speed reducing ratio in every flat-rolled frame, the number of teeth that namely changes travelling gear realizes, also can only provide the very limited several gearratios that relatively approach of quantity but change the number of teeth, can not adapt to the change at random of the sectional area size of roll pass fully.In like manner, the adverse consequences of roller radius error is also caused by this reason.

And to guarantee the stable of sectional area, and be to want the workman when adjusting roll on the one hand, Roller. redress is arrived point-device position to form the pass of determining between the top and bottom rolls, this has just increased substantially workman's operation easier; Then to guarantee on the other hand the stability of the sectional area of Roller Machining, and with the present domestic roll level of production, be 4mm or 5mm for maximum gauge, the pass of radius 2mm～2.5mm, the very normal thing of error time that occurs several decimillimeters in the processing, so sectional area occurs more than 2%, and even 5% error is to have can hardly be avoided.As mentioned above, this error is to be difficult to remedy fully with the variation of the speed reducing ratio of the speed change gear in every flat-rolled frame.And after the flux-cored wire forming machine export trade, the own reconditioning of enterprise of buying forming machine is worn out roll, because machining accuracy, processing experience, the inspection machine of its roll pass all are difficult to reach the level with original production factory, this pass error will become larger, has seriously influenced the use of equipment.

3, Tianjin three English system: this flux-cored wire forming machine be China when the beginning of the nineties in last century, Flux-cored Wire Industry began to start to walk, by the flux-cored wire production equipment of University Of Tianjin's independent development, grope progressively to improve development through practice for many years and form.Count the imitated quantity of own equipment and export trade and Some Domestic enterprise in, the total quantity of this forming machine has reached more than six or seven ten, has occupied the half of the country of domestic flux-cored wire forming machine.

The main feature of this equipment is: adopt the split driven type to drive the rolling welding wire of roll, be to have motor to slow down transmission of power to roll mandrel and roll through reductor behind each flat-rolled frame of forming machine, rolled steel strip distortion or welding wire tube reducing, and when only having bottom roll in every flat-rolled frame initiatively, topping roll is driven rotary by the motion of the welding wire that is driven by bottom roll, and just there is not the not quite identical problem of top and bottom rolls speed in " good fortune is known mountain system " forming machine in this.The advantage of this mode is that the rotating speed of motor can be by frequency converter realization modification, and need not to adjust intermediate gearing is the capable of regulating roll rotational speed.When the roll precision is not high, be that the unstable or radius of the sectional area of roll pass is when unstable (especially behind the flux-cored wire enterprise roll wear, when own reconditioning can not guarantee that it possesses the machining accuracy identical with former factory), or after again changing roll, when workman's volume under pressure can not guarantee definitely accurately, only need to re-enter the coefficient correlation of Electric Machine Control, can reach new suitable rotating speed, guarantee the stability of the volume flow of steel band between the roll or welding wire.So this method has possessed the precision of breaker roll pass and the reasonable adaptive capacity of roller radius, reduced the restriction of breaker roll manufacture level and the restriction of workman's operation easier, make it have more wide market.

But this forming machine also has the problem of oneself: owing to adopted respectively independent type of drive initiatively of flat-rolled frame, so whole forming machine just needs driving or the drive disk assemblies such as a large amount of motors, reductor, shaft coupling, brought difficulty for the operational support of equipment.And because the drive of flat-rolled frame, when occurring speed between the flat-rolled frame initiatively when inharmonious, the phenomenon that fracture of wire can occur or skid: when the pressure ratio of roll larger, when larger to the frictional force of welding wire, whole system is just from the weakest place---and welding wire failure, welding wire are namely broken; When the pressure ratio of roll hour, namely roll to the frictional force of welding wire hour, whole system is just from the weakest place---the contact position failure of roll and welding wire, skid between roll and the welding wire, in case skid, can cause welding wire surface fineness to reduce, affected Quality of Final Welding Wire.

4, Nantong first rays of the morning sun system: this equipment can be described as a kind of improvement to three English flux cored wire forming machines, in the flat-rolled frame of the flux-cored wire forming machine that three English are, topping roll axle and bottom roll axle all are mounted in the metal (upper box, between metal (upper box and the casing that formed by Plate Welding for being slidingly matched, it is slidingly matched and just has the gap of 1～2 decimillimeter at least, and this has just increased the vibration of equipment operation.So Nantong first rays of the morning sun weldering industry becomes one with bottom roll bearing chamber and casing, directly be inserted into when being the bottom roll axle in the horizontal through hole of casing, the upper bearing (metal) chamber still cooperates with box body-sliding, has improved like this rigidity of casing and to the ability of anti-vibration, has improved the crudy of welding wire.In addition, also improved the rigidity of the vertical roll frame of responsible location or the usefulness of healing up, and be that the flat-rolled frame of forming machine is installed on the wing plate of screw by the casing both sides of usefulness and moved on to lower box with three English, need not increase again the width of flat-rolled frame for mounting screw, under identical condition of rolling frame quantity, reduce the length of forming machine.These all belong to the little optimization to device structure, and what qualitative leap is the mentality of designing at equipment do not have.

Along with the develop rapidly (from the annual output hundreds of ton of last century the mid-90 till now produce 30～40 ten thousand ton) of Flux-cored Wire Industry in China, except increasing number of devices, the production capacity that improves single device just becomes an important way of expanding production of flux-cored wire manufacturing enterprise, the steel band of making flux-cored wire also is that to have become present cross section be 14～16mm2 to 0.8mm*12mm=9.6mm2 from early stage cross section, in the constant situation of the linear velocity of equipment operation, can enlarge the production capacity of welding wire more than 50% like this.But because the restriction of plant capacity and the restriction of milling method itself, just occurred being actually for the admission machine of the rolling semi-finished product welding wire rolling problem that power is provided for welding wire.The restriction of described milling method itself refers to for rolling thicker steel band or for the flux-cored wire of this steel band manufacturing, just need larger roll-force, and to provide larger roll-force just to need roll that welding wire is had larger downforce, and the larger downforce of acquisition is to realize by the volume under pressure that improves roll, but because can not be too large in the topping roll volume under pressure of tube reducing in the stage, the too large one side of volume under pressure may cause top and bottom rolls to be collided, can damage roll, can destroy on the other hand the circularity of welding wire, be welding wire by circle just become ellipse or up and down two halves be all just round, but the centre has a small amount of steel and is extruded into projection, can there be very large difficulty in these two kinds of welding wires in follow-up drawing process, the circularity of end product welding wire also is difficult to guarantee.Be that welding wire is to be in the state that partly rolls half, part is initiatively rolling by roll, and part is hauled away by admission machine.But adopt this mode to have following problem for forming machine provides power:

1, admission machine itself is that take-up is used, and its Core Feature is with wire winding, and is not to provide very large backward pull for whole unit.If so the power source of admission machine as backward pull used, obviously run counter to the original intention of design, just will inevitably exist the problem on some structural strength, for example: required strength was excessive when shift fork was stirred the I-beam wheel rotation, run counter to the original intention of design, the intensity of shift fork can not well meet the demands; Because takeup tension is excessive, the power that I-beam wheel is born is bigger than normal, and, the line that under so big takeup tension, tightens up, through expanding with heat and contract with cold (problem that mainly is shrinkage), can be with the I-shaped rim tighter, cause I-beam wheel consumption serious; And under huge takeup tension effect, the stressed also inevitable of screw type strand oscillator increases thereupon, causes the wearing and tearing of take-up leading screw also comparatively serious.

2 and, admission machine as power source, motor can exist the unsettled problem of speed: in order to satisfy the take-up needs of above-mentioned hightension, what admission machine adopted at present is torque motor, because the output torque that the characteristics of torque motor are to keep motor is in a stable scope, and be not that assurance speed is in stable scope.So for stabilizing moment, the speed of admission machine is unsettled at present, for the motor general power of shaping machine set, bridge is 15kw driven by motor central driving axle, the flux-cored wire forming machine general power of all the other types is 20～25kw, the above take-up power of admission machine 10kw is very huge disturbance factor, can cause the complete machine velocity perturbation larger, and then affect the stability of filling rate and surface roughness.

3, in addition, the way of output of speed also can cause the unsettled problem of speed: because the welding wire of forming machine outlet is warmmer, so can not take accurate layer around the mode take-up (if accurate layer is around on the I-beam wheel, very close to each other between welding wire and the welding wire, in case welding wire begins shrinkage so, I-beam wheel is stressed greatly), be welding wire with disorderly around mode on I-beam wheel, so except lowermost one deck welding wire be with predictable position outside I-beam wheel, other all welding wires all are that at random (or even chaos) is on the I-beam wheel, every root wire welding wire will around where, on him, under welding wire all be which root all is fully unknown, so welding wire volume is upper because twining at random the groove that forms then especially at random, so since welding wire in winding process, each root wire when rolling under groove whether, crest or trough, how dark trough have, how high crest have, then be fully and completely uncontrollable, and the speed v of welding wire operation=ω * r, ω is angular speed, r is the instantaneous coil diameter of welding wire rolling, instantaneous coil diameter can occur very at random, suddenly, larger fluctuation, the stable of speed just do not known where to begin yet.

4, the Torque Control of present admission machine is to adopt constant moment of force control, no matter be that the welding wire that empty wheel has just begun on take-up or the I-beam wheel is expired close to receiving namely, no matter the rolling radius of welding wire is much, all the time adopt same take-up moment, when the take-up radius was less, the take-up power that acts on the welding wire was larger so, and the take-up radius is larger the time, reducing then can appear in take-up power, and the reduction of take-up power then can cause the unstable of complete machine speed, has finally affected the quality of product.Even used for reference the growth that the computational methods of present existing rolling radius are controlled take-up moment, although take-up moment is to have increased in mode or perhaps a plausible mode that meets certain Mathematical Modeling, but because the problem of discussing in the upper paragragh, actual rolling radius is unstable, and take-up power also can not be stablized.

So, because above problem, there is now many flux-cored wires enterprise all to adopt to roll and pulls out the integral type flux-cored wire forming machine and finish the half-finished manufacturing of flux-cored wire, namely replace a part of flat-rolled frame of forming machine to realize the tube reducing of welding wire with 4～8 wire drawing machinees, and for welding wire provides a more stable overall operation speed, enhance productivity simultaneously.But in fact because rough---namely roll in the wire drawing of pulling out in the one process, especially nearer apart from the flat-rolled frame wire drawing stage, welding wire is thicker, no matter be dance wire drawing machine or straight-line machine, tension force on the welding wire is larger, be that the active force by the welding wire conduction is also larger between each wire drawing hub, it is still apparent in view that the speed between each wire drawing hub is kept phenomenon mutually in check, and the speed of first wire drawing hub still is not to stablize very much.So rolling the thinking of pulling out one neither absolute ideal in the effect of stablizing aspect the welding wire speed of service of forming machine.

Summary of the invention

The present invention provides a kind of flux-cored wire forming machine group for solving the technical problem that exists in the known technology, and this flux-cored wire forming machine group can be stablized the bulk velocity of welding wire operation, and then improves the welding wire quality of production.

The first technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of flux-cored wire forming machine group, comprise forming machine and take-up, described forming machine comprises a plurality of frame and powder feeder and feeding systems thereof of rolling, the described frame that rolls is passive type, be provided with the outlet smooth rate apparatus before the described take-up, described take-up is without the pulling force take-up.

The second technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of flux-cored wire forming machine group, comprise forming machine and take-up, described forming machine comprises a plurality of frame and powder feeder and feeding systems thereof of rolling, the described frame that rolls is focus driving, the described power source that rolls frame by central driving axle and mechanical variable speed device with transmission of power to roll, be provided with the outlet smooth rate apparatus before the described take-up, described take-up is without the pulling force take-up, and described outlet smooth rate apparatus and the described frame that rolls share the same power source.

The 3rd technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: the method that adopts the described shaping machine set of above-mentioned the first technical scheme to produce welding wire, may further comprise the steps: 1) steel band is emitted from putting the band machine, the yield strength of described steel band is greater than 300Mpa; 2) bend pipe that frame carries out welding wire is rolled in the upstream, and powder feeder adds powder, and the downstream is rolled frame and carried out healing up of welding wire, and the Concerning Pipe-reducing With Roll Type Die device carries out the preliminary tube reducing of welding wire; 3) outlet smooth rate apparatus traction welding wire, welding wire muzzle velocity are to roll 1.6～1.8 times of frame entrance velocity; 4) the outlet smooth rate apparatus drives the take-up rotation, with the welding wire rolling; 5) with multi-joint wire drawing machine welding wire is carried out the drawing tube reducing to the welding wire finished diameter at last.

Advantage and good effect that the present invention has are: adopted without the pulling force take-up, when not only having avoided spool spooling since the unstability of the instant radius of the welding wire rolling that the unrest of welding wire causes around winding displacement for the interference of the take-up speed of welding wire, and fundamentally eliminated the subordinate equipment of outlet smooth rate apparatus to the de-stabilising effect factor of outlet smooth rate apparatus speed, add and adopt the outlet smooth rate apparatus so that the way of output of speed becomes the long-term way of output of determining by uncertain, so that the stability of the speed of service of shaping machine set has improved an order of magnitude, thereby guaranteed the stable of filling rate, improved product quality.

If powder feeder and the interlock of outlet smooth rate apparatus, so that powder feed rate all the time with muzzle velocity, the welding wire flow that is powder feeding flow and outlet keeps a metastable ratio, fundamentally improved the stability of filling rate, the standard deviation of filling rate can be controlled in 0.1%, is the manufacturing highest level of domestic flux-cored wire.

Description of drawings

Fig. 1 is the front view of the embodiment of the invention 1;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the speed measuring device of steel belt structural representation in the embodiment of the invention 1;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is the structural representation that rolls frame in the embodiment of the invention 1;

Fig. 6 is the front view of Fig. 5;

Fig. 7 is the top view of Fig. 5;

Fig. 8 be Fig. 5 with the left view analysed and observe of part;

Fig. 9 is the schematic diagram of belt-type powder feeder front portion structure in the embodiment of the invention 1;

Figure 10 is the A-C-D-A corner cutaway view of Fig. 9;

Figure 11 is the B-C-B corner cutaway view of Fig. 9;

Figure 12 is the structural representation of the embodiment of the invention 2;

Figure 13 is the top view of Figure 12;

Figure 14 is the structural representation of the embodiment of the invention 2 speed measuring device of steel belts;

Figure 15 is the structural representation of the embodiment of the invention 2 powder feeders;

Figure 16 is the B-C-B cutaway view of Figure 15;

Figure 17 is the structural representation of the embodiment of the invention 3;

Figure 18 is the top view of Figure 17, does not contain the feeding system of powder feeder;

Figure 19 is the structural representation of the embodiment of the invention 4;

Figure 20 is the top view of Figure 19.

The specific embodiment

For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:

Embodiment 1:

See also Fig. 1～Fig. 2, a kind of flux-cored wire forming machine group group, comprise that the passive type that sets gradually puts band machine 100, forming machine, forming machine outlet smooth rate apparatus 801 and take-up 802, be combined as inverted wire-drawing machine 800 without pulling force take-up 802 and forming machine outlet smooth rate apparatus 801, forming machine outlet smooth rate apparatus 801 is the wire drawing tank of inverted wire-drawing machine 800, is by the welding wire block winding of wire drawing tank driven rotary in the inverted wire-drawing machine 800 without pulling force take-up 802.Forming machine outlet smooth rate apparatus is provided with power source 803, and forming machine outlet smooth rate apparatus 801 is provided with the shift fork 804 that puts down, and shift fork 804 stretches into without in the pulling force take-up 802, drives without 802 rotations of pulling force take-up.

Above-mentioned passive type is put band machine 100 and is put the band machine for double end, and this is put the band machine and is suitable for sending and is not in the mood for steel band, namely is not wound into the steel band on the I-beam wheel, back and forth is spirally wound on formed steel coil strip on the detachable mold by steel band is regular.

Above-mentioned forming machine is equipped with successively the passive type that speed measuring device of steel belt 400, three horizontally-mounted passive types roll frame 500, powder feeder 600 and feeding system 900 thereof, two vertical installations by entrance to outlet and rolls frame 500 and Concerning Pipe-reducing With Roll Type Die device 700.

See also Fig. 3～Fig. 4, above-mentioned speed measuring device of steel belt 400, comprise pedestal 401, by the wheel shaft 410 that tests the speed fifth wheel 409 is installed on the pedestal 401, test the speed the code-disc of rotating speed measuring sensor also is housed on the wheel shaft 410, testing the speed is key between the code-disc of wheel shaft 410 and fifth wheel 409 and rotating speed measuring sensor and is connected, and rotating speed measuring sensor 411 is packed on the pedestal 401 by connecting plate 412.

Before fifth wheel 409, also be provided with the steel belt clamping wheel assembly, fork steel belt clamping wheel assembly comprises pinch wheels 408 and transition wheel 406, pinch wheels 408 is crimped on the transition wheel 406, pinch wheels 408 is packed on the clamping fork 407 by clamping wheel shaft 414, an end that clamps fork 407 is hinged on the pedestal 401, the other end that clamps fork links to each other with the clamping power source, and is preferred, clamps wheel shaft 414 between pedestal 401 and clamping power source.Transition wheel 406 is installed on the transition wheel shaft 405, and for key is connected, transition wheel shaft 405 links to each other with damping unit between transition wheel shaft 405 and the transition wheel 406.Transition wheel shaft 405 is bearing on the pedestal 401 by bearing.

Damping unit is disc brake 413, and the end of transition wheel shaft 405 is between two braking planes of disc brake 413.

Also be provided with contact roller 402 on the fork pedestal 401, contact roller 402 is installed on the compression fork 403 by compressing wheel shaft, and an end that compresses fork is hinged on the pedestal 401, and the other end that compresses fork 403 links to each other with the compression power source.Contact roller 402 is crimped on the fifth wheel 409.

Preferably, compressing power source and clamping power source is the same power source, is cylinder 404, and the piston rod of this cylinder 404 is connected with afterbody and is compressed fork 403 and be connected fork 407 and be connected, when cylinder 404 shrinks, can drive simultaneously and clamp fork 407 and compression fork 403.

The steel band exit of fork transition wheel 406 be positioned at fifth wheel 409 the steel band porch directly over, can increase the cornerite of steel band on fifth wheel 409, the possibility that reduces to skid.

Preferably, clamp fork 407 and compression fork 403, pinch wheels 408 and contact roller 402, compression wheel shaft and clamping wheel shaft 414 and all adopt same size and dimension, the convenient making and maintaining.

The operating principle of above-mentioned speed measuring device of steel belt 400 is:

When steel band from speed measuring device through out-of-date, clamp steel band by the steel belt clamping wheel assembly, the rotation of steel strip driving transition wheel, because the transition wheel shaft is clamped afterbody by the disc brake of back, form a damping, when the thrust of the steel band of the inertia of steel band or back is not enough to overcome this resistance, this steel belt clamping wheel assembly can will put with the time speed fluctuation keep apart, testing the speed of fifth wheel do not impacted.Fifth wheel is connected with the wheel shaft that tests the speed by key, and the wheel shaft that tests the speed is connected with rotating speed measuring sensor by key, drives the linear velocity of code-disc wheel measuring steel band.

The advantage of above-mentioned speed measuring device of steel belt 400:

Not only increase steel band and will just begin less curved pressing, the compacting of radius of curvature of the steel band on the transition wheel at the cornerite on the fifth wheel and with contact roller, avoid the excessive skidding that causes of rigidity of steel band.Also between fifth wheel, be provided with the steel belt clamping wheel assembly, clamp the steel band that passes through by transition wheel and pinch wheels, simultaneously transition wheel shaft also links to each other with damping unit, increased the resistance of steel band by herein, if the superfluous steel band strength that goes out is not enough large in the overshoot process, be not enough to overcome this resistance, steel band just can't be broken through the steel belt clamping wheel assembly so, the velocity perturbation of steel band also just is isolated in outside the steel belt clamping wheel assembly, has avoided velocity perturbation fifth wheel to be tested the speed and then on the impact of powder feed rate.

See also Fig. 5～Fig. 8, above-mentioned passive type rolls frame 500 and is split type structure, comprise that first rolls frame 508 and second and roll frame 501 two parts, first rolls frame 508 and second rolls frame 501 and links together by connecting axle 522 and connecting plate 511, wherein first rolls frame 508 and passes through screw fastening with connecting axle 522, the end of connecting axle 522 is embedded in the spacing counterbore of connecting plate 511, and connecting plate 511 is fastened on the second side of rolling frame 501 by connecting plate trip bolt 513.

Also be provided with screw 512 and locking nut thereof for axial restraint connecting axle 522 on the connecting plate 511.

First rolls frame 508 and second rolls frame 501 and is processed with respectively hole perpendicular to the side, be installed with roll mandrel 516 by rolling bearing in the hole, the both sides of roll mandrel 516 all are installed with deep groove ball bearing 524 and needle bearing 525, deep groove ball bearing 524 is positioned at the outside of needle bearing 525, deep groove ball bearing 524 is by needle bearing 525 and bearing gland 510 location, bearing gland 510 is fastened on and rolls on the frame, and two needle bearings 525 are by the deep groove ball bearing 524 in the outside and inboard sleeve 526 and the location of the step on the axle.This rolls frame and selects needle bearing and deep groove ball bearing, and two deep groove ball bearing outsides compress by bearing gland, and the existing frame that rolls is selected taper roll bearing, and for installing back-to-back, has the problem that can't locate after the roll mandrel expansion.Because certain axial displacement can appear between the needle roller of needle bearing and the inner ring, and the existence of fit-up gap, can offset the length increase that expansion causes, guarantee that finally the axial location of roll mandrel is reliable.

One end of roll mandrel 516 is installed with interior positioning sleeve 523, the step adjacency of interior positioning sleeve 523 1 sides and roll mandrel 516, the opposite side of interior positioning sleeve 523 and roll 517 adjacency, the opposite side of roll 517 and locking axle sleeve 514 adjacency, locking axle sleeve 514 opposite sides and locknut 515 adjacency that are threaded on the roll mandrel, interior positioning sleeve 523, roll 517, locking axle sleeve 514 all are connected with roll mandrel 516 keys, and the cross section of the outer surface of locking axle sleeve 514 is orthohexagonal.When occurring again wearing the situation of steel band, the operator can pass through spanner rotational lock axle sleeve, drives roller rotational, and steel band is sent, and has avoided the problem that is difficult to wear steel band in the passive type forming machine because roll is unpowered.

Roll and also be provided with steering roll assembly on the frame, steering roll assembly comprises guide roller adjusting device and guide roller carriage, the slide block 502 of guide roller carriage by lock-screw 503 with roll frame and link to each other, the slotted hole that lock-screw 503 passes slide block with roll frame and be threaded.

Guiding roll shaft 518 is installed on the slide block 502, guiding roll shaft 518 is threaded with slide block 502, lock by regulating locknut 521 between guiding roll shaft 518 and the slide block 502, by bearing 527 guide roller 520 is installed on the guiding roll shaft 518, guide roller 520 outsides of guiding roll shaft 518 also are provided with the first locking female 519 and axle sleeve 528.

The guide roller adjusting device comprises adjustment screw 509, and adjustment screw 509 is threaded with being fixed on the adjustment screw support 504 that rolls on the frame, and adjustment screw 509 is provided with the second locking female 505 between its head of screw and adjustment screw support 504.

In sum, in the porch of rolling frame steering roll assembly is installed, the guiding roll shaft, pins by locknut after once adjusting to the right place by being threaded in the slide block, the axial location of the roll shaft that can guarantee to lead.When each replacing guide roller and/or its inner bearing, only need bearing and guide roller are taken, change corresponding component.Unless guide roller can't guarantee roller groove and the roll on it and align, otherwise, need not to change the replacing maintenance that its axial location can be finished guide roller by the rotary steering roll shaft.

First rolls frame 508 is provided with near the roll places and presses down screw 507, pressing down screw 507 rolls in the frame 501 downforce is provided by screwing in second, be provided be used to lifting the first screw 506 that hoists that rolls frame 508 away from the roll place, the screw 506 that hoists presses second to roll frame 501 climbing power is provided by the top.

Above-mentioned passive type rolls the using method of frame 500:

At first unclamp two and adjust screw 512, regulate the axial location of connecting axle, put down first after adjusting puts in place and roll frame 508, and tighten two and adjust screws, finish the first axial adjustment of rolling frame.Tighten and press down the compression that screw 507 is realized roll.When needs roll frame 508 and lift first, can realize by the rotation screw 506 that hoists.

When needs are changed guide roller, at first should unclamp the locking of second on the adjustment screw 509 female 505, then rotating adjustment screw 509 makes it slide block 502 is lost pressure, and unclamp lock-screw 503, when adopting horizontal occupation mode as shown in Figure 7, slide block 502 can owing to gravity descends, can unclamp between two guide rollers and the welding wire.The operator pulls down axle sleeve 528 by unclamping the first locking mother 519, can pull down guide roller and bearing, the guide roller that more renews and/or bearing, and the order that guide roller is installed is opposite with said sequence.

When needs again threading, be passive type owing to originally roll frame, can't come conveying steel belt by the active rotation of roll, so locking axle sleeve 514 outsides are six sides, the operator can drive roll mandrel and roll, backward conveying steel belt by spanner rotational lock axle sleeve.

The advantage that above-mentioned passive type rolls frame 500 is:

1) changes the structure of the top chock slide block translation of in the past rolling frame, adopt split type structure, comprise two parts, roll two parts of frame by the spacing counterbore location of connecting axle and connecting plate, guarantee that two roll mandrels are parallel to each other, the problem of colliding in the roll edge of having avoided existing structure to cause because the top chock head upwarps has been eliminated the possibility that is caused rolls damage by described reason above.

2) at the porch integrated installation that rolls frame steering roll assembly, the guiding roll shaft after once adjusting to the right place, pins by locknut by being threaded in the slide block, the axial location of the roll shaft that can guarantee to lead.When each replacing guide roller and/or its inner bearing, only need bearing and guide roller are taken, change corresponding component.Unless guide roller can't guarantee roller groove and the roll on it and align, otherwise, need not to change the replacing maintenance that its axial location can be finished guide roller by the rotary steering roll shaft.Need not as adopting independently vertical roll frame in original shaping machine set, after replacing registration roller process need is reinstalled vertical roll frame, the adjustment link of a large amount of complexity that produces for the pass centering that guarantees vertical roll frame and flat roller rack will original repeatedly adjustment link changes into and namely finalizing the design after once adjusting to the right place.Reduce the adjustment number of times of guide roller, reduced the dependence of production process for workman's subjectivity operation, not only reduced workman's labour intensity and difficulty, improved production efficiency, also help and improve the quality of products.

See also Fig. 9～Figure 11, above-mentioned powder feeder 600 comprises powder feeding belt 604, front axle 601, rear axle 605, powder feeding belt 604 is stretched on front axle 601 and the rear axle 605, front axle 601 is installed on the front bracing strut 606, powder feeding belt 6044 is walked around front axle 6011, and frictional connection with it, also is provided with a bolster in parallel 602 after front axle 601, bolster 602 and front axle 601 frictional connections, bolster 602 is installed on the front bracing strut 606.Adopt said structure, the diameter of front axle 601 can be reduced to 10mm, even is reduced to 6mm, can not affect the tensioning of powder feeding belt 4.

Front axle 601 two ends are respectively equipped with clutch shaft bearing 607, and the clutch shaft bearing 607 at front axle 1 two ends is embedded in respectively in the chute that is parallel to each other that arranges on the front bracing strut 606, to make things convenient for the dismounting of front axle.

Bolster 602 two ends do not fill bearing, directly by the 4th bearing 612 supportings of its both sides, end, bolster 602 and the 4th bearing 612 frictional connections, the 4th bearing 612 be installed in the second affixed screw 613 of front bracing strut 606 on.Adopt said structure, the diameter of front axle 601 can be reduced to 4mm, even less than 4mm, can not affect the tensioning of powder feeding belt 604.

Also be provided with axis of guide assembly 603 on the front bracing strut 606, the height of axis of guide assembly 603 is lower than the height of front axle 601, with bolster 602 with respect to belt 604 homonymy settings, and be positioned at after the bolster 602.Axis of guide assembly 603 comprises guiding axis 615, and guiding axis 615 is installed on the front bracing strut 606, is supported with guiding roller 616 by the 5th bearing 614 on the guiding axis 615, preferably establishes direction recess on the guiding roller 616, as shown in figure 13.

The operation principle of above-mentioned powder feeder 600 is:

602 supportings of front axle 601 support shafts, the powder feeding belt 604 required tensile forces that front axle 601 bears just are delivered on the bolster 602, only need bolster 602 to have larger rigidity to get final product, front axle 601 has been a transitional function, need not larger diameter to satisfy the rigidity needs, can realize reducing of front shaft diameter, thereby reduce the distance between powder feeding belt 604 upper surfaces and the U-shaped steel band 609; And the centripetal force that improves front axle 601 places, be bonded on the powder feeding belt to reduce medicinal powder; Thereby the minimizing dust pollution, the control accuracy of raising filling rate.

Front axle 601 is adjacent to bolster 602, so the track of front axle 601 should be for take the center of bolster 601 as the center of circle, circular trace take front axle radius and bolster radius sum as radius, add the straight path that the guide groove on the front bracing strut 606 forms the supporting role of clutch shaft bearing 607, the intersection point of two tracks is the position of front axle.Under the effect of the tensile force of belt 604, the position of front axle 601 can be fixed.

After the belt 604 of belt-type powder feeder is walked around front axle 601, when turning back backward active force is acted on the front axle 601, front axle 601 will be spacing by the both sides of chute by clutch shaft bearing 607, front axle 601 is delivered to Main Function power on the bolster, with a small amount of force transmission to on the spacing chute of clutch shaft bearing, so the bearing that clutch shaft bearing can selection of small just can come true the configuration of " front axle adds bolster ".

In addition, because the direction of rotation of bolster 602 and front axle 601 is opposite, the direction of motion that is bolster 602 surfaces is opposite with the direction of motion of belt 604, so belt 604 can not contact with bolster 602, should leave the slit between the two, to avoid the two contact, belt is produced unnecessary wearing and tearing.Leave certain gap between belt 604 and the bolster 602 and will make, just require belt will open certain angle from front axle.If but belt can't satisfy this angle requirement when directly turning back to rear axle from front axle, so need to after bolster 602 axis of guide assembly 603 be set below the front axle height, satisfy above-mentioned requirements to open belt.

The course of work of above-mentioned powder feeder 600 is as follows:

Rear axle 605 is driving shaft, rotation towing belt 604 motions of rear axle 605, belt 604 transports the medicinal powder of certain thickness and width from the final stage feeding device (not looking out among the figure) of powder feeder, when belt 604 moves to front axle 601 medicinal powder is sent down, then belt 604 returns rear axle 605 places through axis of guide assembly guiding, thereby avoid bolster 602,604 motions of rear axle 605 towing belts.Because reducing of front axle 601 radiuses requires just to have improved so be attached to the centripetal force of the medicinal powder on the belt, can reduce medicinal powder adhering on belt.

The advantage of above-mentioned powder feeder 600 is:

By adopting the structure that behind front axle, increases bolster, reduce front shaft diameter, increase considerably centripetal force, improve the thresholding of centripetal force, more difficult the reaching of adhesive force between medicinal powder and the belt can guarantee that medicinal powder does not leave the level of belt, reduced medicinal powder and be attached to possibility on the belt; Simultaneously, utilize bolster but not front axle is born load, still can satisfy the domestic use larger tensile force required than the pachydermia band; Can also reduce by more than 50 than originally with powder height at present, and reduce medicinal powder and dropped to kinetic energy in the U-shaped groove of steel band, reduce splashing of dust.Not only reduced production cost, also reduced cause in the lower powder process spontaneous, at random, uncontrollable link is on the impact of filling rate stability, improved product quality, improved working environment, ensured that the workman's is healthy.

The feeding system 900 of above-mentioned powder feeder comprises big material bin and final stage feeding device 621, big material bin is positioned at final stage feeding device 621 tops, also be provided with at least 1 transition hopper between big material bin and the final stage feeding device 621, transition hopper and big material bin all are installed on the feed bin frame, transition hopper is glass funnel, in the present embodiment, the quantity of transition hopper is 1.

The operating principle of above-mentioned feeding system 900 is:

When belt-type powder feeder 600 carries out powder feeding, medicinal powder in the medicinal powder final stage feeding device 621 at first is transferred away, because the medicinal powder in the final stage feeding device 621 reduces, medicinal powder in the transition hopper can add in the final stage feeding device 621 gradually, and in like manner medicinal powder also can add in the transition hopper from big material bin.When the medicinal powder in the big material bin was finished, the workman hung away the big material bin of sky, and still be full of medicinal powder in the transition hopper this moment, and the medicinal powder of final stage feeding device 621 bottoms is being kept pressure.Very fast, new big material bin is placed on the feed bin frame.From start to finish, the variation of medicinal powder height only is confined in the scope of the top of big material bin and bottom, the powder of final stage feeding device 621 bottoms press change more original feeding system change little, layering and the problem of splashing when also having avoided simultaneously the interval powder feeding.

Above-mentioned Concerning Pipe-reducing With Roll Type Die device 700 in essence, the action principle of the tube reducing roll in roller die and the passive type forming machine is identical, and the diameter of roller die is more much smaller than the diameter of tube reducing roll, so roll-force is also much smaller, does not have the passive type forming machine of Concerning Pipe-reducing With Roll Type Die device to carry out tube reducing than use and will reduce many energy consumption.So vertical installation roll frame after adopt roller die that welding wire is carried out tube reducing, energy saving reduces the equipment general power.Because above-mentioned shaping machine set is the passive type shaping machine set, roll, roll frame, cleaning, drying, the resistance put in the links such as band all will be born at the pulling force at the wire-drawing drum place of inverted wire-drawing machine by welding wire, consider the steel band performance limitations of producing welding wire, can not unconfinedly carry out tube reducing to welding wire, the tube reducing operation of quite a few still will be finished by wire drawing machine.So preferably carry out tube reducing with three groups of roller dies in the present embodiment, tube reducing can not get final product because filling up this cavity play to the medicinal powder that gage of wire can guarantee to be filled in the steel band cavity, and remaining tube reducing operation is finished by wire drawing machine.

Above-mentioned operating principle without the pulling force take-up: above-mentioned without the pulling force take-up refer to the rolling of welding wire be not by rolling welding wire in other words tight on welding wire container welding wire the welding wire that does not have rolling is applied pulling force, the welding wire that is about in other words conj.or perhaps rolling is by the welding wire of rolling it to be applied just rolling of pulling force.This is mode rolling by gravity without the pulling force take-up.Could eliminate like this follow-up equipment to the interference of smooth rate apparatus.Because no matter be the mode that adds the I-beam wheel admission machine behind multi-joint wire drawing machine or the smooth rate apparatus, all welding wire there is pulling force, and because welding wire tensioning that will be thicker needs larger pulling force, and this pulling force finally can be transferred on the smooth rate apparatus or first wire drawing tank of multi-joint wire drawing machine on, because the pulling force that this pulling force is exported with respect to wire drawing machine all is a pulling force of can not ignore, so that in case speed appears in spool take-up (or second wire drawing tank of multi-joint wire drawing machine) and smooth rate apparatus (first wire drawing tank of multi-joint wire drawing machine) is inharmonious, there is the interference to smooth rate apparatus in the capital, and this interference will directly cause filling rate unstable, even add the sudden change of kink buffer speed, also can there be the unstable impact on smooth rate apparatus speed of backward pull, consider that simultaneously forming machine need to improve the welding wire weight of monovolume, so select inverted wire-drawing machine as the smooth rate apparatus of shaping machine set with without the pulling force take-up.

Above-mentioned advantage without the pulling force take-up is, in adopting above-mentioned process of carrying out take-up without the pulling force take-up, since the rolling of welding wire be not by the welding wire that wound to the tension of the welding wire that not yet winds, stretchingly realize take-up, but by gravity welding wire is dropped on the wire rod block winding.

The wire rod block winding that present embodiment adopts inverted wire-drawing machine is as without the pulling force take-up, owing to be that shift fork by underlying drives the wire rod block winding and realizes its rotation without the pulling force take-up, also the weight owing to the wire rod block winding increases gradually, the weight of instant wire rod block winding changes, bring and overcome frictional resistance to drive the moment of torsion of its rotation different, but because the friction between the bracing or strutting arrangement of wire rod block winding and its below is rolling friction, overcome the required torque of this rolling friction be equivalent to inverted wire-drawing machine be used for the hundreds of of traction welding wire so that with the moment of torsion of thousands of ox rice, or even fully negligible.So the variation that the variation that volume is heavy brings motor load, its time also in hour, also be gradual change, also be fully predictable, for the various uncertain destabilizing factor of original spool spooling mode, its stability increases substantially.

Also have, adopt the take-up of wire rod block winding, also avoided the problems such as the I-beam wheel loss in the spool spooling, the loss of shift fork driver plate.Simultaneously because the structure under the wire rod block winding is also simple many than admission machine, its parts that can damage also reduce a lot than spool take-up, avoided being transmitted to because Receiving wire wheel is overheated on the parts of admission machine, caused the admission machine operation overheated, the damage problem of its inner body.

In sum, present embodiment has the following advantages:

1) increased the clamping device of transition wheel and fifth wheel at original speed measuring device, the steel band velocity perturbation of putting with in the link is kept apart, add measures such as reducing cornerite, can effectively avoid skidding, so that speed measuring device can offer effective velocity amplitude of control system.

2) adopt dissection type to roll frame; the problem that can effectively avoid the head of top chock to raise up; effectively protect roll, improve rolling accuracy; changed simultaneously shafting structure; can guarantee to adjust the centering requirement that can satisfy between the roll when roll change, the work load that has reduced the workman has improved the production precision of machine simultaneously.

3) improved the front axle construction of powder feeder, adopted the mode of " bolster+front axle ", can reduce the radius of curvature of front axle, reduce medicinal powder in the adsorbance of belt surface, and reduce powder feeding highly, be conducive to reduce splashing amount, improve workman's working environment and machine running environment and be conducive to improve powder pushing precision.

4) adopt roller die to carry out tube reducing, avoided original many difficult problems of coordinating of tandem rolling mode speed of rolling frame, be conducive to simultaneously reduce surface roughness.

5) adopt inverted wire-drawing machine as power source, and have function of receiving line concurrently, only have a motor that the speed of welding wire is worked when guaranteeing the complete machine operation, avoided speed to be difficult for the problem of coordinating, adopt simultaneously the take-up of wire rod block winding, can reduce many original problems that is difficult to overcome such as the loss of shift fork driver plate, I-beam wheel loss, flywheel of spool spooling.

Embodiment 2:

See also Figure 12～13, a kind of flux-cored wire forming machine group group comprises the band machine 100 of putting, velocity contrast buffer detection device 200, forming machine, forming machine outlet smooth rate apparatus 801 and the take-up 802 that set gradually.

Above-mentioned forming machine is equipped with successively to outlet by entrance that speed measuring device of steel belt 400, three horizontally-mounted passive types roll frame 500, powder feeder 600 and feeding system 900 thereof, three horizontally-mounted passive types roll frame 500 and Concerning Pipe-reducing With Roll Type Die device 700.

The difference of present embodiment and embodiment 1 is: 1) put band machine 100; 2) speed measuring device of steel belt 400; 3) passive type rolls frame 500; 4) powder feeder 600; 5) forming machine outlet smooth rate apparatus 801 and take-up 802; 6) set up velocity contrast buffer detection device 200 with forming machine putting band machine 100.The remainder of present embodiment is identical with embodiment 1.

1) the above-mentioned band machine 100 of putting adopts the active release carrying device, and this belt unreeling device is open in patent CN 101850485A.

2) speed measuring device of steel belt 400, see also Figure 14, comprise the steel belt clamping wheel assembly, fork steel belt clamping wheel assembly comprises pinch wheels 408 and transition wheel 406, pinch wheels 408 is installed on the slide block 417 by clamping wheel shaft, slide block 417 is adaptive with positioning guide rail 418, positioning guide rail 418 is connected with pedestal 401, the clamping power source is helicoidal gear, helicoidal gear comprises adjusting screw(rod) 416, adjusting screw(rod) 416 is installed in the hole of adjusting screw(rod) support 415 and with adjusting screw(rod) support 415 and is threaded, and adjusting screw(rod) 416 ends are threaded with slide block 417.By rotation adjusting screw(rod) 416, can make slide block 417 in guide rail 418 interior slips, make pinch wheels 408 and transition wheel 406 clamp steel band.The structure of the speed measuring device of steel belt among the structure of the other parts of this speed measuring device of steel belt and the embodiment 1 is identical.

Operating principle and the advantage of the speed measuring device of steel belt among above-mentioned speed measuring device of steel belt 400 and the embodiment 1 are identical.

3) passive type rolls frame 500 employings forming machine of the prior art and rolls frame.

4) powder feeder 600, see also Figure 15～16, and be with the difference of powder feeder among the embodiment 1: bolster 2 two ends are respectively equipped with the 3rd bearing 11, are installed in the 3rd bearing 11 at bolster 2 two ends by the first screw 10 supportings that are fixed on the front bracing strut 6.All the other structures are identical with the structure of powder feeder among the embodiment 1, do not giving unnecessary details at this.

5) forming machine outlet smooth rate apparatus 801 and take-up 802, see also Figure 12～13, take-up 802 is the welding wire bobbin winder base, and forming machine outlet smooth rate apparatus 801 is Laying head, forming machine outlet smooth rate apparatus 801 is driven by motor 803, and drives take-up 802 rotations by power transmission shaft 804.The welding wire that forming machine outlet smooth rate apparatus 801 spues is transported to take-up 802 through spinneret 805, take-up 802 carries out under the drive of forming machine outlet smooth rate apparatus 801 without the pulling force coiling, and spinneret 805 is arranged between forming machine outlet smooth rate apparatus 801 and the take-up 802.

The combination of described outlet smooth rate apparatus and take-up can also be used barreled wire bonder or trunk-type take-up machine.

The wire drawing tank of barreled wire bonder (or being referred to as capstan winch) just is equivalent to export smooth rate apparatus, and welding wire barrel is take-up.The wire drawing tank of barreled wire bonder and the power set of welding wire barrel are not the same power sources.A power source is used for driving the wire drawing tank, and the wire drawing tank carries out drawing to welding wire and the welding wire after the drawing is released; Another power source drives the welding wire barrel rotation, and welding wire is fallen into bucket, and this welding wire forms quincunx in bucket.After welding wire barrel is filled, can cover the lid of bucket, transport other place to and carry out the tube reducing operation.To adopt servomotor owing to drive the power source of welding wire barrel rotation, strong many of the common variable-frequency motor of its speed stabilizing Performance Ratio.And wire drawing tank power source is the servomotor of following welding wire barrel, servomotor has been stablized, and the rotating speed of wire drawing tank also must be stablized, in case it is inharmonious speed to occur, pulling force on the welding wire also only is that connected welding wire is pulled up from bucket, and pulling force also is very little.

About trunk-type take-up machine, its wire drawing tank (or being referred to as capstan winch) just is equivalent to export smooth rate apparatus, and the welding wire block winding is equivalent to take-up.Because its take-up does not rotate, welding wire just ejects from the wire drawing tank and carries through going out line bracket, falls on the welding wire block winding.As long as welding wire is relaxed state after being separated from wire drawing tank surface, just no longer included any pulling force on the welding wire.

Embodiment 3:

See also Figure 17～18, a kind of flux-cored wire forming machine group group comprises the band machine 100 of putting, forming machine, forming machine outlet smooth rate apparatus 801 and the take-up 802 that set gradually.

Above-mentioned forming machine is equipped with successively to outlet by entrance that speed measuring device of steel belt 400, three horizontally-mounted passive types roll frame 500, powder feeder 600 and feeding system 900 thereof, three horizontally-mounted passive types roll frame 500 and Concerning Pipe-reducing With Roll Type Die device 700.

The characteristics of present embodiment are: powder feeder 600 and forming machine outlet smooth rate apparatus 801 share a power source.

As everyone knows, the formula of flux-cored wire filling rate α is:

$\mathrm{\α}=\frac{m_1}{m_2+m_1}$

M wherein ₁Be the medicinal powder quality of carrying in the unit interval, m ₂Be the steel band quality of passing through in the unit interval,

This formula can also be expressed as β=m wherein ₁/ m ₂If β is a certain value, α will be certain certain value also so, be exactly in fact to keep β to stablize so keep the stable of filling rate α.

If adopt the powder feeding of belt-type powder feeder, then

Then the filling rate formula can be expressed as:

$\mathrm{\α}\frac{{\mathrm{\ρ}}_1\×d_1\×b_1\×v_1}{{\mathrm{\ρ}}_2\×d_2\×b_2\×v_2+{\mathrm{\ρ}}_1\×d_1\×b_1\×v_1}$

Wherein, ρ ₁, d ₁, b ₁, v ₁For the density of medicinal powder, powder feeding face are the width on the welding wire traffic direction, the thickness of powder feeding belt medicine-feeding bisque and the speed of powder feeding belt at the width of belt, ρ ₂, d ₂, b ₂, v ₂Density, width, thickness and the steel belt operating speed of difference steel band.Wherein in actual production process, the velocity perturbation of steel band is maximum, and the problem of keeping the required maximum of facing of filling rate stability namely is to handle the velocity perturbation problem of steel band well.

Because powder delivery method of the prior art generally is the angle that turns over according to speed measuring coder in the certain hour, the span of described certain hour is 0.05s～0.1s, and the yardage that turns over according to the code-disc of this section in the time is removed to drive servomotor again and carried out powder feeding.And when powder feeding because the upper of powder feeding belt of the prior art powder feeding place is 25mm～30mm along the distance apart from the center of U-shaped steel band groove, according to the correlation formula of acceleration of gravity: s=0.5*g*t ², s is drop, g is gravity acceleration value 9.8m/s ²Be 0.07s～0.08s passing out to the time that drops to U-shaped groove middle part without the medicinal powder under the ideal conditions of air drag from the powder feeding belt, this still supposes not have the numerical value under the air drag condition, in the reality because the existence of air drag is arranged, the maximal rate of medicinal powder particle does not also reach theoretic calculated value, so the time also has greatly than above-mentioned numerical value.Above-mentioned two times add up to 0.12s～0.18s, and the moment that the medicinal powder of namely sending in the mode of following is fallen the moment and the corresponding instantaneous state of velocity of this powder feeding in the U-shaped steel band has just differed 0.12s～0.18s.But in the actual production process of flux-cored wire forming machine, be 0.5s～2s the period of waves of speed, and above-mentioned length of delay has accounted for 40% of minimum of a value period of waves, and this delay is definitely unacceptable.If adopting the algorithm of some optimizations processes the data of measuring, certainly will increase so the data processing load of control system, improve the computing level of electric-control system, finally will increase substantially the cost of control device and the cost of equipment itself, also probably reduce the reliability of system simultaneously.

So someone has proposed to guarantee that with the mode of mechanical linkage powder feed rate can keep with the complete machine speed of service of flux-cored wire forming machine a relatively stable ratio.To this problem, Nantong first rays of the morning sun weldering is already through having applied for that utility model patent " powder adding device of flux-cored wire " publication number is CN 201529858U, make roll and powder feeder adopt the same power source, and with fixing register ratio transmission, utilized the roll speed of service of rolling welding wire initiatively to reflect the actual motion speed of welding wire, and the fluctuation of speed is reflected on the speed of powder feeder immediately, to guarantee stablizing of powder feed rate and welding wire (or steel band) speed of service.

But there is following problem in this method in actual production process: according to the stream of the equal-volume in rolling therory principle, when the formed area of section of top and bottom rolls is large, the speed of service of the object that is rolled is just full, and when sectional area was little, the speed of service was just fast.And in the production process of welding wire of reality, the workman is always according to own force level, rotate be equipped with topping roll roll frame the time, rotate to feed mechanism (generally being screw-drive mechanism) the tightest.This has just caused the unstability of sectional area.If workman's condition is the larger workman of strength in other words conj.or perhaps well, pressure just tight, sectional area is just little, and the speed of service is just fast, if workman's condition is bad or perhaps strength is smaller, the just pine of pressure, sectional area is just beaten, and the speed of service is just greatly.And this deviation be the mechanical linkage formula definitely can't overcome, suppose that this deviation only has 0.02mm, for the steel band that thickness is 0.8mm, the relative value of its error has just reached 2.5%, this error multiply by 12～15% filling rate absolute value again, the error of filling rate has just reached 0.3～0.4%, this will make the fluctuation range of whole flux-cored wire filling rate deflect away from up or down 0.3～0.4%, this is controlled at the filling rate fluctuation of flux-cored wire and the people who sets value in deviation 0.5% scope for wanting, and will be very difficult.

And when powder feeder speed is directly mechanically linked with muzzle velocity, the two employing the same power source in other words.Powder feed rate is directly proportional with the speed of outlet welding wire, because the outlet diameter of roller die is to survey measuredly after each the adjustment, and the wear law of roller die also is that the wire drawing industry is grasped.So when powder feeder speed is directly linked with muzzle velocity, powder feeding volume in unit interval also just with the unit interval in the ratio of volume of welding wire output keep stablizing, and the overall accumulated amount of input is identical with the volume of output, so d1*b1*v1 is stable with ratio maintenance (d1*b1*v1+d2*b2*v2), d2*b2*v2 is that the ratio of volume flow and the volume flow of d1*b1*v1 medicinal powder of steel band keeps stable so, so be multiplied by respectively the density of oneself when both after, both mass ratio β are stable, and filling rate α also will be stable so.

So in the present embodiment, the power source of the power source of described powder feeder and outlet smooth rate apparatus is the same power source.The power source 803 of outlet smooth rate apparatus, be motor in the present invention, by mechanical driving device 698 and central driving axle 699 with transmission of power to the driving shaft of powder feeder 600, it is synchronous with the muzzle velocity of welding wire that the speed of powder feeder can keep, and before the powder feeder that adopts of present embodiment in the shaft portion, the height that its medicinal powder breaks away from belt also only is 11～13mm, and the fall time of medicinal powder is 0.04～0.05s.So there is not delay in mechanical linkage type in the transmission course of speed, only can be present in medicinal powder the time delay that speed is followed from falling behind to the time of falling in the U-shaped steel band groove under the powder feeding belt, be 0.04～0.05s, this delay can guarantee the fluctuation of the speed of getting caught up in fully with respect to velocity perturbation cycle 0.5～2s.

The relative scale problem that can't regulate powder sending quantity and steel band flow in the powder feeding of mechanical linkage formula, guarantee that the medicinal powder flow of powder feeder can adapt to the requirement of various filling rates, in the final stage feeding device of powder feeder, also be provided with the structure of regulator plate height to regulate the powder feeding layer thickness, this scheme illustrates in specification [0023] paragragh of CN 101722389A " passive flux-cored wire forming machine " and Fig. 4 Fig. 5, when using micrometer to regulate, the workman can measure actual welding wire filling rate according to the debug phase before producing, the ratio of filling rate and actual filling rate and powder layer thickness are at that time set required powder layer thickness as requested.

Embodiment 4:

See also Figure 19～20, a kind of flux-cored wire forming machine group comprises the band machine 100 of putting, the velocity contrast buffer detection device 200 that set gradually, forming machine, forming machine outlet smooth rate apparatus 801 and take-up 802.

Described forming machine is the focus driving flux-cored wire forming machine, to outlet speed measuring device of steel belt 400, three active frame 500, powder feeder 600 and feeding system 900 thereof, three active frame 500 and Concerning Pipe-reducing With Roll Type Die devices 700 of rolling of horizontally-mounted lower shaft of rolling of horizontally-mounted lower shaft is installed successively by entrance.

The difference of present embodiment and embodiment 1 is:

Power source 803 links to each other by the input belt pulley 806 of belt transmission with outlet smooth rate apparatus 801, this input belt pulley 806 is above-mentioned bel-drivenn follower, its groove number is greater than the groove number of driving wheel 808 (the output shaft belt wheel of motor), the groove number that has more and the input belt pulley of central driving axle 807 809 consist of belt transmission, driving central driving axle 807 rotates, reductor after central driving axle 807 passes to power successively each and rolls frame or powder feeder, reductor is passed to the corresponding reductor that rolls after frame and next are rolled frame with power.Described reductor also comprises stepless speed-regulating device.Simultaneously, this central driving axle also by mechanical variable speed device with transmission of power to the line shaft of powder feeder.

In the present embodiment, the power source of the power source of described powder feeder and outlet smooth rate apparatus is the same power source.The power source (being motor) of outlet smooth rate apparatus by mechanical driving device and central driving axle with transmission of power to the driving shaft of powder feeder, it is synchronous with the muzzle velocity of welding wire that the speed of powder feeder can keep, and before the powder feeder that adopts of present embodiment in the shaft portion, the height that its medicinal powder breaks away from belt also only is 11～13mm, and the fall time of medicinal powder is 0.04～0.05s.So there is not delay in mechanical linkage type in the transmission course of speed, only can be present in medicinal powder the time delay that speed is followed from falling behind to the time of falling in the U-shaped steel band groove under the powder feeding belt, be 0.04～0.05s, this delay can guarantee the fluctuation of the speed of getting caught up in fully with respect to velocity perturbation cycle 0.5～2s.

The relative scale problem that can't regulate powder sending quantity and steel band flow in the powder feeding of mechanical linkage formula, guarantee that the medicinal powder flow of powder feeder can adapt to the requirement of various filling rates, in the final stage feeding device of powder feeder, also be provided with the regulator plate height to regulate the powder feeding layer thickness, this scheme illustrates in specification [0023] paragragh of CN 101722389A " passive flux-cored wire forming machine " and Fig. 4 Fig. 5, when using micrometer to regulate, the workman can measure actual welding wire filling rate according to the debug phase before producing, the ratio of filling rate and actual filling rate and powder layer thickness are at that time set required powder layer thickness as requested.

Above-mentioned outlet smooth rate apparatus and be not limited to inverted wire-drawing machine without being combined of pulling force take-up can also use Laying head to add combination or barreled wire bonder or the trunk-type take-up machine of welding wire block winding.Drawing the power of Laying head or barreled wire bonder or trunk-type take-up machine for driving the central driving axle is that those skilled in the art realize easily.

Embodiment 5:

A kind of method that adopts the shaping machine set described in above-described embodiment 1 or the embodiment 2 to produce flux-cored wire, select yield strength greater than the steel band of 300Mpa, with steel band after put the band machine and emit, utilize speed measuring device of steel belt to measure the instant speed of service of steel band, speed measuring device of steel belt is transported to control system with the steel band speed of measuring, power source-the servomotor of control system control powder feeder, servomotor drives the belt-type powder feeder and carries out powder feeding, the medicinal powder of sending falls into the steel band that is rolled into U-shaped by molding roller, then through healing up and preliminary tube reducing, after carrying out significant tube reducing by roller die, the flux-cored wire of producing after the drawing of outlet smooth rate apparatus, by without the pulling force take-up with without the rolling of pulling force mode.Transfer at last multi-joint wire drawing machine welding wire is carried out the drawing tube reducing to the welding wire finished diameter, obtain the finished product welding wire.

In above-mentioned flux-cored wire production process, the entrance velocity of preferred steel band is 70～100 m/mins, limited by the intensity of steel band, and reducing rate can not be excessive, and the output speed of flux-cored wire is 1.6～1.8 times of entrance velocity.

Embodiment 6:

A kind of above-described embodiment 3 described flux-cored wire forming machine groups that adopt are produced in the method for flux-cored wire, only are that the control mode of powder feeding is different from embodiment 5, and all the other are identical with embodiment 5.

In the present embodiment, powder feed rate is not to be decided by the steel band speed that control system obtains, the entrance velocity that the speed that speed measuring device of steel belt is measured steel band just expresses steel band to the operator meets the original operating habit of operator to represent the speed of service of complete machine.Powder feed rate is direct and the muzzle velocity interlock, namely the rotating speed with the outlet smooth rate apparatus links, the outlet smooth rate apparatus with power by mechanical driving device and central driving axle with transmission of power to the driving shaft of powder feeder, the volume flow that can guarantee welding wire outlet keeps necessarily with the ratio of the volume flow of medicinal powder, thereby finally guarantees the stability of filling rate.

Although the above is described the preferred embodiments of the present invention by reference to the accompanying drawings; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not breaking away from the scope situation that aim of the present invention and claim protect; can also make a lot of forms; for example be provided with cleaning device and drying unit between band machine and the forming machine putting, all belong within protection scope of the present invention.

Claims (6)

1. flux-cored wire forming machine group, comprise forming machine and take-up, described forming machine comprises a plurality of frame and powder feeder and feeding systems thereof of rolling, the described frame that rolls is passive type, it is characterized in that: be provided with the outlet smooth rate apparatus before the described take-up, described take-up is without the pulling force take-up, described forming machine is equipped with speed measuring device of steel belt by entrance successively to outlet, described passive type rolls frame, described powder feeder and feeding system thereof, described powder feeder comprises the powder feeding belt, front axle and rear axle, described powder feeding belt tension is on described front axle and described rear axle, described front axle is installed on the front bracing strut, be supported with bolster in parallel after the described front axle, described bolster and described front axle frictional connection, described bolster is installed on the described front bracing strut, described front axle two ends are separately installed with clutch shaft bearing, and the clutch shaft bearing at described front axle two ends is embedded in respectively in the chute parallel to each other that arranges on the described front bracing strut.

2. flux-cored wire forming machine group according to claim 1 is characterized in that, described outlet smooth rate apparatus and described combination or inverted wire-drawing machine or trunk-type take-up machine or the barreled wire bonder that Laying head adds the welding wire block winding that be combined as without the pulling force take-up.

3. flux-cored wire forming machine group according to claim 1 is characterized in that, the power source of the power source of described powder feeder and outlet smooth rate apparatus is the same power source.

4. according to claim 1 or 3 described flux-cored wire forming machine groups, it is characterized in that, described passive type rolls frame and comprises two roll mandrels that are parallel to each other, be separately installed with roll on described two roll mandrels, described two roll mandrels are installed in respectively first and roll frame and second and roll in the frame, described first rolls frame and described second rolls frame and is fixed together by connecting axle and connecting plate, described connecting plate is provided with spacing counterbore, the end of described connecting axle is contained in the spacing counterbore of described connecting plate, described connecting plate by screw fastening in described the second side of rolling frame, described connecting axle is parallel with described roll mandrel, from the extremely outlet of entrance of steel band, described roll is followed successively by molding roller, roll heals up, the tube reducing roll.

5. flux-cored wire forming machine group according to claim 4, it is characterized in that, described speed measuring device of steel belt comprises pedestal, be supported with the wheel shaft that tests the speed by bearing on the described pedestal, be fixed with fifth wheel on the described wheel shaft that tests the speed, the upstream of described fifth wheel is provided with the steel belt clamping wheel assembly, described steel belt clamping wheel assembly comprises by bearing and is bearing in transition wheel shaft on the described pedestal, be packed in transition wheel and the pinch wheels that is crimped on the described transition wheel on the described transition wheel shaft, described pinch wheels is bearing in by bearing and clamps on the wheel shaft, described clamping wheel shaft is fixed on the pinch wheels position adjusting mechanism, described pinch wheels position adjusting mechanism is connected on the described pedestal, is connected with damping unit on the described transition wheel shaft.

6. the described shaping machine set of an employing such as the claim 1～5 any one method of producing welding wire is characterized in that, may further comprise the steps:

1) steel band is emitted from putting the band machine, the yield strength of described steel band is greater than 300Mpa;

2) bend pipe that frame carries out welding wire is rolled in the upstream, and powder feeder adds powder, and the downstream is rolled frame and carried out healing up of welding wire, and the Concerning Pipe-reducing With Roll Type Die device carries out the preliminary tube reducing of welding wire;

3) outlet smooth rate apparatus traction welding wire, welding wire muzzle velocity are to roll 1.6～1.8 times of frame entrance velocity;

4) take-up with without the mode of pulling force with the welding wire rolling;

5) with multi-joint wire drawing machine welding wire is carried out the drawing tube reducing to the welding wire finished diameter at last.

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