CN102139428A

CN102139428A - Flux cored wire integrated moulding machine set, flux cored wire production method and flux cored wire

Info

Publication number: CN102139428A
Application number: CN2010105593787A
Authority: CN
Inventors: 张国良; 宋开泰; 刘继元; 李也庚; 陈春旺; 薛爱云
Original assignee: Tianjin Sainteagle Welding Co Ltd
Current assignee: Tianjin Sainteagle Welding Co Ltd
Priority date: 2010-11-24
Filing date: 2010-11-24
Publication date: 2011-08-03
Anticipated expiration: 2030-11-24
Also published as: CN105414806A; CN102139428B; CN105414806B

Abstract

The invention discloses a flux cored wire integrated moulding machine set, comprising a strap releasing machine, a moulding machine and a wire winding device, wherein the moulding machine comprises a passive rolling frame, a moulding machine exit speed stabilizing device is arranged at the upstream of the wire winding device, and the moulding machine exit speed stabilizing device and the wire winding device share one power source. The invention also discloses a method for producing a welding wire by adopting the moulding machine set and the welding wire produced by adopting the method. By adopting the invention, the defect that the welding wire winding speed is interfered as the welding wire is wound on a flat cable disorderly and the radius is instantly instable when the welding wire is rolled can be avoided when a spool is used for winding the welding wire, and the unstable influence factor of a subordinate device of a speed stabilizing device to the speed stabilizing device is thoroughly eliminated. The moulding machine exit speed stabilizing device is adopted, and the output mode of speed is changed from an uncertain output mode to a long-term certain output mode, thus the stability of the operating speed of the moulding machine set is improved by one order of magnitude, the filling factor is ensured to be stable, and the product quality is improved.

Description

Flux-cored wire integrated molding unit, flux-cored wire production method and flux-cored wire

Technical field

The present invention relates to the flux-cored wire production technical field, particularly a kind of flux-cored wire integrated molding unit, flux-cored wire production method and flux-cored wire.

Background technology

At present, with Main classification number is to occur these two conditions of " flux-cored wire " four words in B23K35/40 (being that specific name is " manufacturing of soldering or welding wire or welding rod ") and the specification to retrieve, 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 used to make the method such as the welded tubes filled with powder of flux-cored wire; 10) CN200710056707.4, a kind of technology that adopts dish round steel wire rod to make flux-cored wire; 11) CN200710114456.0, method for manufacturing flux-cored wire; 12) CN200910061623.9, the filling rate on-line measurement control method and the device of flux-cored wire forming machine; 13) CN200910097003.0, flux-cored wire adopts the manufacture method of wet mixing sintering 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, oiling of flux-cored wire surface clean and device thereof; 17) CN201010003697.X, the manufacture method of flux-cored wire; 18) CN200410057948.7 is used to make the method for stitching the 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 processed.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 rod and has made flux-cored wire technology, mainly be to be included on the dish round steel wire rod to roll out U type groove, add powder, heal up, steps such as tube reducing, its main feature is to need not to carry out the intermediate annealing link, can reduce production costs significantly, but in fact this patent is through after examining, its statutory status is " deemed withdrawal of patent application ", though it is not that what reason is regarded as recalling certainly for we actually, but it was 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 the 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 under the situation that clear superiority is arranged, this method adopts this thinking to make flux-cored wire in other words conj.or perhaps and does not still popularize significantly.Because dish round steel wire rod is after rolling out U type groove, its flow harden is very serious, is difficult to carry out the later operation of healing up, and is easy to occur crack longitudinally, 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 technology that another employing dish round steel wire rod is made flux-cored wire, mainly be to utilize cold continuous rolling will coil round steel wire rod rolling to become the special-purpose accurate steel band of flux-cored wire, and annealed being heat-treated to being easy to by the steel band raw material of common make-up machine and wire drawing machine use.It focuses on how making the special-purpose accurate steel band of this flux-cored wire, which type of material to make steel band with, how to control relevant technological parameter etc.This patent mainly is on the preparation method of the special-purpose accurate steel band of flux-cored wire great technological break-through have been arranged, and the use flux-cored wire forming machine group of wherein mentioning 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, on 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 the new lubricant of wire-feeder resistance in welding, 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 the flux-cored wire powder feeder, and in this centre material pipe, level sensor and following level sensor have been installed, next with the medicinal powder Weight control of weight load on belt within the specific limits, and detection by the loading and unloading level sensor, guarantee the monitoring of medicinal powder flow, add the steel band speed measuring device 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 evenly flow to downwards in the U type channel-section steel band in the motion through baffle plate, 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.Though above-mentioned two inventions are undeniable to the improvement of powder feeding technology, also only are the improvement at powder feeder, and are not the innovation at the global design of whole flux-cored wire forming machine.

As for CN97102700.5, CN200610058129.3, CN200610111508.4, CN200710078814.7, CN201010003697.X, CN200410057948.7 then is the 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:

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

CN200610058129.3 then be the wire feed lubricant of using when on the finished product welding wire, applying welding declared of U.S. Lincoln Global Inc. and wire feed lubricant composition and with apply the relevant technology controlling and process of wire feed lubricant, belong 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 as far as possible to the technology class patent aspect the destruction of the medicinal powder in the steel-tape sheath, 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 when first road of welding wire pulls to finished diameter or approaches 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 changes, and it is meant the rotating speed of hot candied hub.Equipment of the present invention has multiple functional, and is applied widely, practical; The automaticity height, serviceability is reliable, and the throwing quality is good; Silk producing procedures is few, the production efficiency height, 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 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 steel band U type groove; 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 handle as for after the drawing, that is just unknown, according to its disclosed data, the workman that can only say so is manual to unload several kilograms on the hot candied hub or tens kilograms of silk materials.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 certain meaning, if what do not consider that this patent will face is the 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, the shortage practicality.

As for CN200810068960.6 is a kind of " passive flux-cored wire forming machine " that the space flight South Sea, Guizhou mechanical ﹠ electrical corporation declares, and 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 are formed, roll cross sectional shape structure at powder adding device first three groups vertical roller is a 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 make-up 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 than the flux-cored wire forming machine that generally adopts in the industry advanced more or unusual part, but because the final examination result of this invention is still unexposed, so we can't just say its do not have patent of invention the outstanding substantive distinguishing features and the obvious improvement that should possess, we can not just say now that more this patent has the substantive distinguishing features and the obvious improvement of giving prominence to that patent of invention institute should possess certainly.

At home in the flux-cored wire manufacturing enterprise, except that a spot 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: with width is that steel band about 10mm～20mm is rolled into U type groove, in U type groove, fill medicinal powder, the U steel band of model 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 the 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 make-up machine, adopted the flat frame mode of active at interval of rolling of moulding, be adjacent per two make-up machine flat roll have in the frame one dynamic, another does not have power, and roll in the frame in that each dynamic moulding is flat, 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 support body that rolls of this make-up machine amasss bigger, the adjustment axle of topping roll bearing block is installed at the top of frame, rotate this adjustment axle and transmission of power is arrived the topping roll bearing block, realize that the adjustment of topping roll bearing block also compresses steel band or welding wire by one group of gear driving pair or worm and gear transmission.

But every of this make-up machine flat, and to roll the volume of frame bigger, not only causes flat manufacturing difficulty of rolling the part of frame own, and the accuracy of manufacture is difficult for guaranteeing, but also cause floor space big, and equipment cost rises.In addition, for the flat frame that rolls of dynamic make-up machine, two rolls simultaneously initiatively up and down, though 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 roll radius centered 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 influence 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, influenced 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 make-up machine is a focus driving, promptly adopt a bigger motor of power to slow down and output through deceleration device, drive a central driving axle and pass all flat frame and powder feeders of rolling in the flux-cored wire forming machine, each is flat rolls frame or powder feeder is transformed to own required speed with different gear ratio with this speed more once more, 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 change or the decline significantly of product quality.Because in a single day pass has tangible error, the sectional area of the rolling surface that welding wire or steel band passed through just changes so, 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 each flat speed change gear conversion of rolling frame comes, and this speed but is to be difficult to change.Even change, also can only be by changing every flat mode of rolling the speed reducing ratio in the frame, the number of teeth that promptly changes travelling gear realizes, also can only provide the very limited several more approaching gearratio 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, roll is adjusted to 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 the stability of the sectional area of Roller Machining on the other hand, and with the present domestic roll level of production, for maximum gauge is 4mm or 5mm, 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 every flat variation of rolling the speed reducing ratio of the speed change gear in the frame.And after the flux-cored wire forming machine export trade, the worn out roll of the own reconditioning of enterprise of buying make-up machine, 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 bigger, 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, the 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 domestic part enterprise in, the total quantity of this make-up machine has reached more than six or seven ten, we can say the half of the country that has occupied 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 that flat the rolling of each of make-up machine all has motor to slow down through reductor behind the frame to give roll mandrel and roll with transmission of power, rolled steel strip distortion or welding wire tube reducing, and every flat rolling when having only bottom roll in the 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 " make-up machine in this.The advantage of this mode is that rotating speed of motor can be realized revising by frequency converter, need not to adjust intermediate gearing and can adjust roll rotational speed.When the roll precision is not high, be that the sectional area instability of roll pass or radius are 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 changing roll again, when workman's volume under pressure can not guarantee definitely accurately, only need 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 the comparison vast market.

But this make-up machine also has the problem of oneself: owing to adopted the flat independent respectively type of drive initiatively of frame of rolling, so whole make-up machine just needs driving or drive disk assemblies such as a large amount of motors, reductor, shaft coupling, brought difficulty for the operational support of equipment.And because flat drive of rolling frame, when initiatively flat rolls speed appears when inharmonious between the frame, the phenomenon that fracture of wire can occur or skid: when the pressure ratio of roll bigger, to the frictional force of welding wire when bigger, whole system is just from the weakest place---and welding wire destroys, and welding wire is promptly broken; When the pressure ratio of roll hour, promptly roll to the frictional force of welding wire hour, whole system is just from the weakest place---the contact position of roll and welding wire destroys, skid between roll and the welding wire, in case skid, can cause welding wire surface fineness to reduce, influenced the welding wire quality.

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 make-up machines, the flat of flux-cored wire forming machine in three English system rolls in the frame, topping roll axle and bottom roll axle all are mounted in the metal (upper box, between metal (upper box and the casing that is welded by steel plate 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 is slidingly matched with casing, has improved the rigidity of casing like this and to the ability of anti-vibration, has improved the crudy of welding wire.In addition, also improved the rigidity of the edger roll frame of the responsible location or the usefulness of healing up, and be that make-up machine flat rolls frame and install on the wing plate of screw by the casing both sides of usefulness and moved on to lower box with three English, need not be again for mounting screw increases the flat width that rolls frame, under identical condition of rolling frame quantity, reduced the length of make-up machine.These all belong to the little optimization to device structure, and what qualitative leap is not arranged on the mentality of designing of equipment.

Along with of 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, and the steel band of making flux-cored wire is 0.8mm*12mm=9.6mm from early stage cross section also ²Having become present cross section is 14～16mm2, under 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 the admission machine that the is used for rolling semi-finished product welding wire rolling problem that power is provided for welding wire has appearred being actually.The restriction of described milling method itself is meant for rolling thicker steel band or for the flux-cored wire of this steel band manufacturing, just need bigger roll-force, and to provide bigger roll-force just to need roll that welding wire is had bigger downforce, and obtain bigger downforce is to realize by the volume under pressure that improves roll, but because can not be too big in the topping roll volume under pressure of tube reducing in the stage, the too big one side of volume under pressure may cause top and bottom rolls to be collided, can damage roll, can destroy the circularity of welding wire on the other hand, be welding wire by circle just become ellipse or up and down two halves be all just round, but the centre has a spot of steel and is extruded into projection, can there be very big 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 make-up machine provides power:

1, admission machine itself is that take-up is used, and its Core Feature is with the wire rod rolling, and is not to provide very big 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 speed problem of unstable: 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 a 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 bigger, and then influence the stability of filling rate and surface roughness.

3, in addition, the way of output of speed also can cause the speed problem of unstable: because the welding wire of make-up 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 bead wire bond silk will around where, on him, under welding wire all be which root all is fully unknown, so welding wire volume is gone up because of twining the groove that forms at random then especially at random, so since welding wire in winding process, each root bead silk when rolling under groove whether, be crest or trough, how dark trough have, how high crest have, then be slap-up uncontrollable, and the speed v=ω * r of welding wire operation, ω is an angular speed, r is the instant coil diameter of welding wire rolling, instant coil diameter can occur very at random, suddenly, bigger fluctuation, the stable of speed just do not known where to begin yet.

4, the Torque Control of present admission machine is to adopt the control of constant force square, no matter be that the welding wire that empty wheel has just begun on take-up or the I-beam wheel has approached to receive full promptly, 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 bigger so, and the take-up radius is bigger the time, reducing then can appear in take-up power, and the reduction of take-up power then can cause the instability of complete machine speed, has finally influenced the quality of product.Even used for reference the growth that the computational methods of present existing rolling radius are controlled take-up moment, though take-up moment is to have increased in a mode or perhaps a plausible mode that meets certain Mathematical Modeling, but because the problem of being discussed in the last paragragh, actual rolling radius instability, take-up power also can not be stablized.

So, because above problem, there is many flux-cored wires enterprise all to adopt now to roll and pulls out the integral type flux-cored wire forming machine and finish the half-finished manufacturing of flux-cored wire, promptly replace the part of make-up machine to put down and roll the tube reducing that frame is realized welding wire with 4～8 wire drawing machinees, and, enhance productivity simultaneously for welding wire provides a more stable overall operation speed.But in fact because rough---promptly roll in the wire drawing of pulling out in the one process, especially distance is flat rolls the nearer wire drawing stage of frame, welding wire is thicker, no matter be dance wire drawing machine or straight-line machine, tension force on the welding wire is bigger, be that the active force by the welding wire conduction is also bigger 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 very stable.So rolling the thinking of pulling out one neither absolute ideal in the effect of stablizing aspect the welding wire speed of service of make-up machine.

Summary of the invention

The present invention provides a kind of bulk velocity of stablizing the welding wire operation for solving the technical problem that exists in the known technology, and then the flux-cored wire integrated molding unit of the raising welding wire quality of production, the present invention also provides a kind of this unit method of producing flux-cored wire and flux-cored wire that adopts this method to produce of adopting for this reason.

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 integrated molding unit, comprise and put band machine, make-up machine and take-up, described make-up machine comprises that passive type rolls frame, the upstream of described take-up is provided with make-up machine outlet smooth rate apparatus, described make-up machine outlet smooth rate apparatus and the shared power source of described take-up.

Second technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of method that adopts above-mentioned shaping machine set 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) make-up machine moulding welding wire; 3) make-up machine outlet smooth rate apparatus traction welding wire, the welding wire muzzle velocity is 1.6～1.8 times of make-up machine entrance velocity; 4) make-up machine 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.

The 3rd 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, this welding wire are the welding wires that adopts said method to produce, and described welding wire is mating interface or overlap joint interface.

Advantage and good effect that the present invention has are: adopted no pulling force take-up, when not only having avoided the I-beam wheel take-up, because welding wire is random in the interference of the instant radius unstability of the welding wire rolling that winding displacement caused for the welding wire take-up speed, and has fundamentally eliminated the de-stabilising effect factor of smooth rate apparatus subordinate equipment to smooth rate apparatus speed.Add and adopt make-up machine outlet smooth rate apparatus to make the way of output of speed become the long-term way of output of determining by uncertain, make the stability of the shaping machine set speed of service improve an order of magnitude, thereby guaranteed the stable of filling rate, improved product quality.

Adopt the interlock of powder feeder and make-up machine outlet smooth rate apparatus, make powder feed rate all the time with muzzle velocity, the welding wire flow that is powder feeding flow and outlet has kept a metastable ratio, fundamentally improved the stability of filling rate, the standard deviation of filling rate can be controlled in 0.1%, has reached 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 vertical view of Fig. 1;

Fig. 3 is the steel band drying unit structural representation of the embodiment of the invention 1;

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

Fig. 5 is the embodiment of the invention 1 a steel band speed measuring device structural representation;

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

Fig. 7 is the structural representation that the embodiment of the invention 1 is rolled frame;

Fig. 8 is the front view of Fig. 7;

Fig. 9 is the vertical view of Fig. 7;

Figure 10 is the left view that part is analysed and observe that has of Fig. 7; (Fig. 7-Figure 12 two figure a piece of papers)

Figure 11 is the structural representation of the embodiment of the invention 1 powder feeder;

Figure 12 is the B-C-B cutaway view of Figure 11;

Figure 13 is the A-C-D-A cutaway view of Figure 11;

Figure 14 is the structural representation of medicinal powder cutter sweep on the embodiment of the invention 1 powder feeder;

Figure 15 is the front view of the embodiment of the invention 2;

Figure 16 is the vertical view of Figure 15;

Figure 17 is the structural representation of the embodiment of the invention 2 steel band drying units;

Figure 18 is the left view of Figure 17;

Figure 19 is the structural representation of the embodiment of the invention 2 steel band speed measuring devices;

Figure 20 is the structural representation of the embodiment of the invention 2 powder feeders;

Figure 21 is the B-A-B cutaway view of Figure 20.

The specific embodiment

For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

See also Fig. 1～Fig. 2, a kind of flux-cored wire integrated molding unit group, comprise that the passive type that sets gradually puts band machine 100, ultrasonic cleaning equipment 200, steel band drying unit 300, make-up machine, make-up machine outlet smooth rate apparatus 801 and take-up 802, take-up 802 and make-up machine export the inverted wire drawing machine 800 that is combined as of smooth rate apparatus 801, make-up machine outlet smooth rate apparatus 801 is the wire drawing jar of inverted wire drawing machine 800, and take-up 802 is by the welding wire block winding of wire drawing jar driven rotary in the inverted wire drawing machine 800.Make-up machine outlet smooth rate apparatus is provided with power source 803, and make-up machine outlet smooth rate apparatus 801 is provided with the shift fork 804 that puts down, and shift fork 804 stretches in the take-up 802, drives take-up 802 rotations.

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, promptly is not wound into the steel band on the I-beam wheel, by the formed steel coil strip of steel band itself.

See also Fig. 3～Fig. 4, above-mentioned steel band drying unit 300, comprise support 301, steel band arrival end on support is provided with air-brush 302, the Way out of air-brush is provided with directive wheel assembly 303, middle part at support is equipped with the infra-red radiation drying unit by drive unit and guide rail, steel band exit at support also is provided with air-brush, also be provided with the directive wheel assembly between the air-brush in exit and infra-red radiation drying unit, former and later two directive wheel assemblies can guarantee that the distance between the radiating surface of territory infrared radiator in the steel band running is constant.

The infra-red radiation drying unit comprises infrared radiator 304, the radiating surface of infrared radiator down, infrared radiator links to each other with slide plate 306 by suspension bracket 305, slide plate is a channel-section steel, the bottom surface of channel-section steel also is equipped with the reflecting plate of V font or circular arc or ellipse arc down on the slide plate, reflecting plate 307 is connected with slide plate, the center line of reflecting plate 307 is parallel with the axis of infrared radiator 304, is provided with heat-preservation cotton between reflecting plate 307 and the slide plate 306.

Drive unit comprises cylinder 308, and tail cylinder is installed on the support 301, and cylinder is positioned at below the frame upper surface, and the head of cylinder piston rod links to each other with connecting rod 310 by I joint 309, and connecting rod links to each other with sliding plate support 311; The bottom of slide plate links to each other with sliding plate support, sliding plate support links to each other with linear bearing 312, linear bearing be installed on two parallel to each other and be parallel to frame upper surface and be parallel to cylinder and be installed in by feed rod support 313 on the feed rod 314 of frame upper surface bottom surface.

The operation principle of above-mentioned steel band drying unit 300:

When steel band need move, cylinder 308 is shifted infrared oven dry radiation appliance onto position by transmission device, be infrared radiator 304 centerings, air-brush 302 is blown to steel band with air-brush earlier, blows away attached to the most of moisture on the steel band, by infrared radiator steel band is carried out radiation then, because the radiating surface width of radiator is greater than the width of steel band, so also be provided with reflecting plate 307 on slide plate, reflecting plate reflexes to remaining energy on the steel band back side, realizes making full use of of energy.In the exit of this drying unit air-brush has been installed then, can have been blown away the dust that radiator drops on steel band upper surface (being the inner surface after the steel band moulding is healed up).

Above-mentioned steel band drying unit 300 adopts air-brush to add way of infrared radiation oven dry steel band, use air-brush to blow away the most of moisture of steel strip surface in online mode, the moisture that remaining not easy-to-use air-blowing is gone is dried with infrared mode, and below steel band, also be provided with reflecting plate, made full use of the energy of infra-red radiation, form than original employing oven dry pipe has been saved a large amount of energy, has also reduced a kind of important thermal source in the workshop simultaneously, has improved workman's working environment.

Above-mentioned make-up machine is equipped with the passive type that steel band speed measuring device 400, three horizontally-mounted passive types roll frame 500, powder feeder 600 and feeding system thereof 900, two vertical installations successively by the outlet that enters the mouth and rolls frame 500 and roller die tube reducing device 700.

See also Fig. 5～Fig. 6, above-mentioned steel band speed measuring device 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 tachometric survey 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 tachometric survey sensor and is connected, and tachometric survey sensor 411 is packed on the pedestal 401 by connecting plate 412.

Before fifth wheel 409, also be provided with band cramp bearing up pulley assembly, fork band cramp bearing up pulley 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 a disc brake brake 413, and the end of transition wheel shaft 405 is between two braking planes of disc brake brake 413.

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

Preferably, compressing power source and clamping power source is same power source, is cylinder 404, the piston rod of this cylinder 404 and afterbody respectively with compress fork 403 and clamping fork 407 is connected, when cylinder 404 shrinks, can drive clamping fork 407 simultaneously and compress 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 compress fork 403, pinch wheels 408 and contact roller 402, compress wheel shaft and clamp wheel shaft 414 and all adopt same size and dimension, conveniently make and maintaining.

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

When steel band from speed measuring device through out-of-date, clamp steel band by band cramp bearing up pulley assembly, the rotation of steel strip driving transition wheel, because the transition wheel shaft is clamped afterbody by the disc brake brake of back, form a damping, when the thrust of the steel band of the inertia of steel band or back was not enough to overcome this resistance, the fluctuation of speed was kept apart when this band cramp bearing up pulley assembly can will be put band, testing the speed of fifth wheel was 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 the tachometric survey sensor by key, drives the linear velocity of code-disc wheel measuring steel band.

The advantage of above-mentioned steel band speed measuring device 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 band cramp bearing up pulley assembly, clamp the steel band that passes through by transition wheel and pinch wheels, the wheel shaft of transition simultaneously 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 big in the overshoot process, be not enough to overcome this resistance, steel band just can't be broken through band cramp bearing up pulley assembly so, the velocity perturbation of steel band also just is isolated in outside the band cramp bearing up pulley assembly, has avoided velocity perturbation fifth wheel to be tested the speed and then to the influence of powder feed rate.

See also Fig. 7～Figure 10, 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 to roll frame 508 fastening by screw 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 second side of rolling frame 501 by connecting plate trip bolt 513.

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

First rolls frame 508 and second rolls frame 501 and is processed with hole perpendicular to the side respectively, 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 deep groove ball bearing 524 and the sleeve 526 of inboard and the step location on the axle in the outside.This rolls frame and selects needle bearing and deep groove ball bearing for use, and two deep groove ball bearing outsides compress by bearing gland, and the existing frame that rolls is selected taper roll bearing for use, 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 an orthohexagonal.When occurring wearing the situation of steel band again, the operator can pass through spanner rotational lock axle sleeve, drives the roll rotation, and steel band is sent, and has avoided the problem that is difficult to wear steel band in the passive type make-up machine because of 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 first locking female 519 and the 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 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 with away from the roll place and be used to lift first screw 506 that hoists that rolls frame 508, the screw 506 that hoists rolls frame 501 by roof pressure second provides climbing power.

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 compressing of screw 507 realization rolls.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 unclamp between two guide rollers and the welding wire owing to gravity descends.The operator pulls down axle sleeve 528 by unclamping the first locking mother 519, can pull down guide roller and bearing, guide roller that more renews and/or bearing, and the order that guide roller is installed is opposite with said sequence.

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

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 the spacing counterbore location of two parts of frame by 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 of the top chock head upwarps has been eliminated the possibility that is caused rolls damage by described reason above.

2) the integrated steering roll assembly of having installed in the porch of rolling frame, guiding roll shaft after once adjusting to the right place, pin 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 edger roll frame in original shaping machine set, after replacing registration roller process need is reinstalled the edger roll frame, the adjustment link of a large amount of complexity that produces for the pass centering that guarantees edger roll frame and flat roller rack will originally repeatedly be adjusted link and change into and promptly 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, not only reduced working strength of workers and difficulty, improved production efficiency, also help and improve the quality of products for workman's subjectivity operation.

See also Figure 11～Figure 13, 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 preceding bracing strut 606, powder feeding belt 6044 is walked around front axle 6011, and friction connects with it, also is provided with a bolster in parallel 602 after front axle 601, bolster 602 is connected with front axle 601 frictions, and bolster 602 is installed on the preceding bracing strut 606.Adopt said structure, the diameter of front axle 601 can be reduced to 10mm, even is reduced to 6mm, can not influence the tensioning of powder feeding belt 4.

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

Bearing is not adorned at bolster 602 two ends, and directly by the 4th bearing 612 supportings of its both sides, end, bolster 602 rubs with the 4th bearing 612 and is connected, the 4th bearing 612 be installed in the second affixed screw 613 of preceding bracing strut 606 on.Adopt said structure, the diameter of front axle 601 can be reduced to 4mm, even less than 4mm, can not influence the tensioning of powder feeding belt 604.

Before also be provided with axis of guide assembly 603 on the 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, on the bracing strut 606, is supported with guiding roller 616 by the 5th bearing 614 on the guiding axis 615 before guiding axis 615 is installed in, and 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 is born just are delivered on the bolster 602, only need bolster 602 to have bigger rigidity to get final product, front axle 601 has been a transitional function, need not bigger diameter to satisfy the rigidity needs, can realize reducing of preceding shaft diameter, thereby reduce the distance between powder feeding belt 604 upper surfaces and the U steel band of model 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 the center of circle for the center with bolster 601, with front axle radius and bolster radius sum is the circular trace of radius, guide groove before adding on the bracing strut 606 is to the straight path of the supporting role formation of clutch shaft bearing 607, and the intersection point of two tracks is the position of front axle.Under the effect of the tensile force of belt 604, can be with the fixed-site of front axle 601.

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 with main force transmission to bolster, with a spot of force transmission to on the spacing chute of clutch shaft bearing, so clutch shaft bearing can be selected less bearing for use, just the configuration of " front axle adds bolster " can be come true.

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 clearance 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 directly when front axle turns back to rear axle, so need 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 a 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, belt 604 returns rear axle 605 places through axis of guide assembly guiding then, thereby avoid bolster 602,604 motions of rear axle 605 towing belts.Because reducing of front axle 601 radiuses so require just to have improved 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 preceding 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 attached to the possibility on the belt; Simultaneously, utilize bolster but not front axle is born load, still can satisfy the domestic use big 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 steel band U type groove, reduce splashing of dust.Not only reduced production cost, also reduced cause in the following powder process spontaneous, at random, uncontrollable link is to the influence of filling rate stability, improved product quality, improved working environment, ensured that the workman's is healthy.

See also Figure 14, above-mentioned powder feeder 600 is provided with the medicinal powder cutter sweep, comprise support 617, support 617 is installed on the preceding bracing strut 606 of powder feeder, the extension spring of drawing back 619 is installed on the support 617, extension spring 619 is positioned at the top of powder feeding belt 604, and the spacing between extension spring 619 and the powder feeding belt 604 is less than the medicinal powder thickness of carrying on the powder feeder powder feeding belt 604.The end of extension spring 619 is fixed on the sidewall of support 617, and the foot of each circle of extension spring 619 and welding wire traffic direction are perpendicular, and is promptly parallel with the traffic direction of powder feeding belt 604.Also be provided with the pad 623 that is used to regulate extension spring 619 height between support 617 and the preceding bracing strut 606.Support 617 comprises two L shaped support members, and each L shaped support member is fixed in a side of the preceding bracing strut 606 of powder feeder.Above-mentioned extension spring 619 can be substituted by the scraper plate that lower surface has a sawtooth.

The operation principle of above-mentioned medicinal powder cutter sweep is:

Medicinal powder is by after belt-type powder feeder 600 extracts from final stage feeding device 621, and when being delivered to the front axle place, extension spring of drawing back 619 or bottom have the top layer incision of zigzag scraper plate with medicinal powder, has promptly destroyed medicinal powder formed medicinal powder piece in operation before.And the workman is according to the thickness of medicinal powder layer, can make the medicinal powder cutter sweep be in suitable height by the thickness of regulating pad, top layer medicinal powder can be cut with the foot of each circle of guaranteeing extension spring or the zigzag part of scraper plate, and most of medicinal powder not stopped on the powder feeding belt.

The advantage of above-mentioned medicinal powder cutter sweep is: each ring of the extension spring that utilization is drawn back or the scraper plate that lower surface has sawtooth are at welding wire U steel band of model traffic direction, be on the front axle direction of rotation of powder feeding belt upper strata medicinal powder to be cut, the piece fragmentation that can form medicinal powder, medicinal powder utilizes self gravitation to get final product layering, powder is even at present at low speed to have guaranteed powder feeder, improved flux-cored wire filling rate stability when the flux-cored wire forming machine low cruise, the negative effect of process connection when having reduced cycling start and parking.

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 a 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 used up, 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, the layering and the problem of splashing when also having avoided powder feeding at interval simultaneously.

Above-mentioned roller die tube reducing device 700 in essence, the action principle of the tube reducing roll in roller die and the passive type make-up 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 make-up machine of roller die tube reducing 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, reduce energy consumption, reduce 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 each link 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 of 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.

The operating principle of above-mentioned take-up: above-mentioned take-up be meant the rolling of welding wire be not by the welding wire of rolling tight in other words 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, is the mode rolling by gravity.Could eliminate the interference of follow-up equipment like this to 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 bigger pulling force, and this pulling force finally can be transferred on the smooth rate apparatus or first wire drawing jar 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 jar of multi-joint wire drawing machine) and smooth rate apparatus (first wire drawing jar 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 the filling rate instability, even add the sudden change of kink buffer speed, also can there be of the influence of backward pull instability to smooth rate apparatus speed, consider that simultaneously make-up machine need improve the welding wire weight of monovolume, so select smooth rate apparatus and the take-up of inverted wire drawing machine for use as shaping machine set.

The advantage of above-mentioned take-up is, adopting above-mentioned take-up to carry out in the process of take-up, since the rolling of welding wire be not by the welding wire that wound to the tension of the welding wire that do not wind as yet, stretchingly realize take-up, but welding wire is dropped on the wire rod block winding by gravity.

Present embodiment adopts the wire rod block winding of inverted wire drawing machine as take-up, because take-up is to realize its rotation by the shift fork drive wire rod block winding of underlying, because the weight of wire rod block winding increases gradually, the weight of instant wire rod block winding changes, bring the variation of motor load, the time of this variation also in hour, it also is gradual change, also be predictable, for the various uncertain destabilizing factor of original I-beam wheel take-up mode, its stability increases substantially.

Also have, adopt the take-up of wire rod block winding, also avoided the problems such as I-beam wheel loss, the loss of shift fork dial in the I-beam wheel take-up.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 of 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) adopt air-brush+infra-red radiation+air-brush combination that steel band is dried; whether switch motion and main frame move interlock; adopted the heat conduction to compare with the oven dry tube side formula of convection current more in the past; can realize instant ON/OFF; reduced the waste of energy when shutting down; reduce an important thermal source in the workshop simultaneously, and effectively reduced the length of whole unit.

2) on original speed measuring device, increased the clamping device of transition wheel and fifth wheel, the steel band velocity perturbation of putting in the band joint is kept apart, add measures such as reducing cornerite, can effectively avoid skidding, make speed measuring device can offer effective velocity amplitude of control system.

3) 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 shafting structure simultaneously; 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.

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

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

6) adopt inverted wire drawing machine as power source, and have function of receiving line concurrently, have only 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 the take-up of wire rod block winding simultaneously, can reduce many original problems that is difficult to overcome such as the loss of shift fork dial, I-beam wheel loss, flywheel of I-beam wheel take-up.

Embodiment 2:

See also Figure 15～16, a kind of flux-cored wire integrated molding unit group comprises the band machine 100 of putting, ultrasonic cleaning equipment 200, steel band drying unit 300, make-up machine, make-up machine outlet smooth rate apparatus 801 and the take-up 802 that set gradually.

Above-mentioned make-up machine is equipped with successively by the outlet that enters the mouth that steel band speed measuring device 400, three horizontally-mounted passive types roll frame 500, powder feeder 600 and feeding system thereof 900, three horizontally-mounted passive types roll frame 500 and roller die tube reducing device 700.

The difference of present embodiment and embodiment 1 is: 1) put band machine 100; 2) the steel band drying unit 300; 3) the steel band speed measuring device 400; 4) passive type rolls frame 500; 5) powder feeder 600; 6) make-up machine outlet smooth rate apparatus 801 and take-up 802.The remainder of present embodiment is identical with embodiment 1.

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

2) the steel band drying unit 300, see also Figure 17～18, comprise support 301, steel band arrival end on support is provided with air-brush 302, the Way out of air-brush is provided with directive wheel assembly 303, middle part at support is equipped with infrared radiator by drive unit and guide rail, steel band exit at support also is provided with air-brush, also be provided with the directive wheel assembly between the air-brush in exit and infra-red radiation drying unit, former and later two directive wheel assemblies can guarantee that the distance between the radiating surface of territory infrared radiator in the steel band running is constant.

The radiating surface of infrared radiator 304 down, infrared radiator links to each other with slide plate 306 by suspension bracket 305, slide plate is a channel-section steel, the bottom surface of channel-section steel down, the reflecting plate of V font or circular arc or ellipse arc also is installed on the slide plate, reflecting plate 307 is connected with slide plate, and the center line of reflecting plate is parallel with the axis of infrared radiator, is provided with heat-preservation cotton between reflecting plate and the slide plate.

Drive unit comprises cylinder 308, and tail cylinder is installed on the support, and cylinder is positioned at below the frame upper surface, and the head of cylinder piston rod is connected with fork with pin 310 by I joint 309, and the middle part of fork 311 is hinged on the support; The middle part, bottom surface of slide plate links to each other with fork with pin by ears 312, the bottom of slide plate is parallel to be equipped with two or four linear bearings 313, linear bearing be installed on two parallel to each other and be parallel to frame upper surface and be parallel to cylinder and be installed on the feed rod 315 on the support by feed rod support 314.

The operating principle and the advantage of the steel band drying unit among above-mentioned steel band drying unit 300 and the embodiment 1 are identical.

3) the steel band speed measuring device 400, see also Figure 19, comprise band cramp bearing up pulley assembly, fork band cramp bearing up pulley 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 a 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, slide block 417 is slided in guide rail 418, make pinch wheels 408 and transition wheel 406 clamp steel band.The structure of the steel band speed measuring device among the structure of the other parts of this steel band speed measuring device and the embodiment 1 is identical.

The operating principle and the advantage of the steel band speed measuring device among above-mentioned steel band speed measuring device 400 and the embodiment 1 are identical.

4) passive type rolls frame 500 employings make-up machine of the prior art and rolls frame.

5) powder feeder 600, see also Figure 20～21, and be with the difference of powder feeder among the embodiment 1: bolster 2 two ends are respectively equipped with the 3rd bearing 11, and the 3rd bearing 11 that is installed in bolster 2 two ends is by first screw, 10 supportings on the bracing strut 6 before being fixed in.All the other structures are identical with the structure of powder feeder among the embodiment 1, do not giving unnecessary details at this.

6) make-up machine outlet smooth rate apparatus 801 and take-up 802, see also Figure 15～16, take-up 802 is the welding wire bobbin winder base, and make-up machine outlet smooth rate apparatus 801 is a Laying head, make-up 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 make-up machine outlet smooth rate apparatus 801 spues is transported to take-up 802 through spinneret 805, take-up 802 does not have the pulling force coiling under the drive of make-up machine outlet smooth rate apparatus 801, spinneret 805 is arranged between make-up machine outlet smooth rate apparatus 801 and the take-up 802.

Adopt above-mentioned take-up to carry out take-up, since the rolling of welding wire be not by the welding wire that wound to the tension of the welding wire that do not wind as yet, stretchingly realize take-up, but welding wire being dropped on the welding wire block winding by thrust, its advantage is identical with the operating principle and the advantage of take-up among the embodiment 1.

Embodiment 3:

A kind of method that adopts the shaping machine set described in the foregoing description 1 or the embodiment 2 to produce flux-cored wire, select the steel band of yield strength for use greater than 300Mpa, with steel band after put the band machine and emit, cleaning through cleaning device, through clear water the operating steel band that cleans is later sprayed then, wash away the steel strip surface cleaning fluid, pass through the air-brush of ultrasonic cleaner afterbody again, blow away the most of moisture of steel strip surface.Then through the air scour that reuses of the air-brush of the front end of steel band drying device, remove residual moisture, then infrared radiator shines steel strip surface, and heat energy is delivered to steel strip surface in the mode of radiation, and the remaining moisture that removes with the mode of air blowing of being difficult to of steel strip surface is fallen in baking.

Utilize the steel band speed measuring device to measure the instant speed of service of steel band, the steel band speed measuring device 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 significantly tube reducing by roller die, the flux-cored wire of producing is after the drawing of inverted admission machine, unload by inverted wire drawing machine, be discharged on the take-up stand, transfer to multi-joint wire drawing machine at last 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 meters/minute, 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 4:

A kind of embodiment 1 or made flux-cored wire of embodiment 2 described flux-cored wire forming machine groups of using, this flux-cored wire are mating interface or overlap joint interface, and the standard deviation of the fluctuation of its filling rate is less than 0.1%.

Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; 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; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.

Claims

1. flux-cored wire integrated molding unit, comprise and put band machine, make-up machine and take-up, it is characterized in that, described make-up machine comprises that passive type rolls frame, the upstream of described take-up is provided with make-up machine outlet smooth rate apparatus, described make-up machine outlet smooth rate apparatus and the shared power source of described take-up.

2. flux-cored wire integrated molding unit according to claim 1, it is characterized in that, described take-up and described make-up machine export the inverted wire drawing machine that is combined as of smooth rate apparatus, described make-up machine outlet smooth rate apparatus is the wire drawing jar of described inverted wire drawing machine, and described take-up is by the welding wire block winding of described wire drawing jar driven rotary in the described inverted wire drawing machine.

3. flux-cored wire integrated molding unit according to claim 1, it is characterized in that, described take-up is the welding wire block winding, and described make-up machine outlet smooth rate apparatus is a Laying head, and described make-up machine outlet smooth rate apparatus drives described welding wire block winding rotation by power transmission shaft.

4. according to claim 1 or 2 or 3 described flux-cored wire integrated molding units, it is characterized in that, described make-up machine is equipped with the steel band speed measuring device successively by the outlet that enters the mouth, described passive type rolls frame, 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 preceding bracing strut, be supported with bolster in parallel after the described front axle, described bolster is connected with described front axle friction, described bolster is installed on the described preceding 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 is provided with on the described preceding bracing strut.

5. flux-cored wire integrated molding unit according to claim 4, 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 first respectively 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 is fastened on described second side of rolling frame by screw, described connecting axle is parallel with described roll mandrel, from the extremely outlet of inlet of steel band, described roll is followed successively by molding roller, roll heals up, the tube reducing roll.

6. flux-cored wire integrated molding unit according to claim 4, it is characterized in that, described steel band speed measuring device 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 band cramp bearing up pulley assembly, described band cramp bearing up pulley 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.

7. flux-cored wire integrated molding unit according to claim 1, it is characterized in that, this shaping machine set also comprises cleaning device and the steel band drying unit that sets gradually, described cleaning device is positioned at described downstream of putting the band machine, the steel band arrival end of described steel band drying unit on support is provided with air-brush, at the steel band arrival end and the port of export of support the directive wheel assembly is housed respectively; Be provided with slide plate between two directive wheel assemblies, the infra-red radiation drying unit is installed on the slide plate, and slide plate is connected with drive unit.

8. flux-cored wire integrated molding unit according to claim 4, it is characterized in that, described powder feeder is provided with the medicinal powder cutter sweep, described medicinal powder cutter sweep comprises the support and the medicinal powder cutting body that is installed on the described support that is packed on the preceding bracing strut of powder feeder, described medicinal powder cutting body is positioned at the top of powder feeder powder feeding belt, and the spacing between described medicinal powder cutting body and the described powder feeder powder feeding belt is less than the medicinal powder thickness of carrying on the described powder feeder powder feeding belt.

9. any method that described shaping machine set is produced welding wire of employing such as claim 1～8 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) make-up machine moulding welding wire;

3) make-up machine outlet smooth rate apparatus traction welding wire, the welding wire muzzle velocity is 1.6～1.8 times of make-up machine entrance velocity;

4) make-up machine 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.

10. a flux-cored wire is characterized in that, this welding wire is the welding wire that adopts the described method of claim 9 to produce, and described welding wire is mating interface or overlap joint interface.