CN101823086A - The building mortion of special-shaped wire section - Google Patents
The building mortion of special-shaped wire section Download PDFInfo
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- CN101823086A CN101823086A CN 201010125459 CN201010125459A CN101823086A CN 101823086 A CN101823086 A CN 101823086A CN 201010125459 CN201010125459 CN 201010125459 CN 201010125459 A CN201010125459 A CN 201010125459A CN 101823086 A CN101823086 A CN 101823086A
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Abstract
The object of the present invention is to provide a kind of building mortion of special-shaped wire section, the problem that it solves generation bending on the wire rod before and after the shaping of special-shaped wire section has high dimensional accuracy and formability is good.The present invention is a kind of building mortion of special-shaped wire section, it has the four-roller type turks as forming unit, preferably: leading portion and back segment at described forming unit dispose straightener respectively, on described forming unit, the four-roller type turks of non-driving and power-actuated four-roller type turks arranged in series.
Description
Technical field
The present invention relates to a kind of building mortion of special-shaped wire section, it is applicable to the shaping etc. of the wire rod of the odd-shaped cross section that piston ring for engine etc. uses.
Background technology
Because the developing direction of the rotation of the height of engine in recent years, high output, the piston ring of high load capacity is converted to steel by cast iron in the past, and special steels such as employing high-alloy stainless steel.
In piston ring, different siding track, spacer ring and compression rings about the oil ring, cross sectional shape of the approximate H shape of cross sectional shape arranged, have odd-shaped cross section respectively.In this piston ring, there is the piston ring with complicated odd-shaped cross section of the approximate H shape in cross section to use, for the piston ring strict dimensional accuracy of wire rod as former material as oil ring.
Now, the piston ring of such odd-shaped cross section with the shaping of wire rod for example as described in the patent documentation 1 (TOHKEMY 2003-39103 communique), following motion is arranged: after will justifying line and being configured as rectangular lines, the forming unit of the leading portion four-roller type turks of non-driving and the combination of power-actuated back segment four-roller type turks is shaped by 1 unit or the building mortion of in series arranging a plurality of unit.
This motion will divide 3~5 shapings and middle operation of carrying out stress relief annealing to change the operation that is shaped and omits or cut down middle stress relief annealing with 1~2 time in the past, thus, have the advantage that can increase substantially efficient and reduce cost.
Though above-mentioned patent documentation 1 described building mortion increase substantially efficient and reduce cost aspect favourable, but if be configured as the state of rectangular lines with for example last procedure, to remainingly on wire rod there be the raw material of bending or distortion to be configured as special-shaped wire section, then when engaging-in four-roller type turks or in rolling, the problem that the occupied state that produces the pair roller pass is inhomogeneous, can not be configured as the shape of regulation.
In addition, because crooked problem has appearred producing in wearing and tearing of the roller in rolling and thermal expansion etc. on the wire rod after the shaping.These problems bring very big influence can for the formability of special-shaped wire section and the processing of subsequent processing.
Summary of the invention
The object of the present invention is to provide a kind of building mortion of special-shaped wire section, it solves and produce crooked problem on the wire rod before and after the shaping of special-shaped wire section, and formability is good and have a high dimensional accuracy.
The present inventor inquires into and produce crooked problem before and after the shaping of special-shaped wire section, by adopt detorsion mechanism before and after being shaped, can improve the dimensional accuracy of special-shaped wire section and the formability in next process significantly, thereby forms the present invention.
Promptly the invention provides a kind of building mortion of special-shaped wire section, it has the four-roller type turks as forming unit, disposes straightener respectively at the leading portion and the back segment of described forming unit.
Preferably: the four-roller type turks of non-driving in the described forming unit and power-actuated four-roller type turks in series dispose.
And preferred: the four-roller type turks of non-driving in the described forming unit and power-actuated four-roller type turks are in series arranged a plurality of unit.
In addition, preferred: the back segment at described forming unit, dispose the single or multiple finishing units that are made of the four-roller type turks of non-driving.
The invention effect
According to the present invention, by leading portion and backend configuration straightener at the forming unit that constitutes by the four-roller type turks, thereby can be suppressed at the bending that produces before and after the shaping of special-shaped wire section, can improve the manufacturing of the special-shaped wire section that is used for piston ring etc. tremendously.
Description of drawings
Fig. 1 is the figure of an example of the building mortion of expression special-shaped wire section of the present invention.
Fig. 2 is for representing the figure in the cross section of the special-shaped wire section of shaping in an embodiment.
Fig. 3 is the schematic diagram that is illustrated in the transverse curvature amount that produces in the special-shaped wire section.
Fig. 4 is the figure of an example of the arrangement of the roll leveller that possesses of building mortion of expression special-shaped wire section of the present invention.
Fig. 5 is the schematic diagram of an example of the mesh volume of the roll leveller (above-below direction) that possesses of building mortion of expression special-shaped wire section of the present invention.
Fig. 6 is the figure of another example of the building mortion of expression special-shaped wire section of the present invention.
Fig. 7 is the figure of another example of the building mortion of expression special-shaped wire section of the present invention.
The specific embodiment
Most important characteristic of the present invention is, at the leading portion and the backend configuration straightener of the forming unit that is formed by four-roller type turks (4 side ロ, one Le タ, one Network ス ヘ Star De).
As mentioned above, if wire rod is wound up on the cylinder etc., then be easy to generate distortion such as coiling defective on the wire rod.If will remainingly on wire rod have the wire rod of distortion such as bending or distortion to use the four-roller type turks to be configured as special-shaped wire section, then wire rod can not vertically enter with respect to the face of roller pass.Consequently, the occupied state of pair roller pass is inhomogeneous, can not be configured as the shape of regulation or make crooked the increase.
Be the odd-shaped cross section shape that obtains stipulating, it is very important making wire rod vertically engaging-in with respect to the face of roller pass when rolling.Therefore, in the present invention, straightener is set, was used for before making the engaging-in roller pass of wire rod detorsion wire rod at the leading portion of forming unit.
And, in the four-roller type turks in rolling, when the roller of same pass shape is rolled about using, as if for example state of wear difference of the roller pass of left and right sides roller, lubricating status difference when then making the engaging-in roller of wire rod, the plastic deformation of the wire rod after rolling flows and produces difference.Consequently and since about the elongation difference of wire rod, therefore on wire rod, produce crooked.
And, about using during different roller pass shaping special-shaped wire section because the distortion on the left and right sides Ge Bian that wire rod is applied by roller produces difference, about the elongation difference of wire rod, therefore on wire rod, produce crooked.And if carry out the shaping of special-shaped wire section continuously, then according to the pass shape of the used roller of four-roller type turks, by the deflection difference that each roller applies special-shaped wire section, therefore, the processing heat from wire rod that imposes on each roller may be different.The thermal expansion amount of each roller has nothing in common with each other thus, and therefore, the diameter of each roller produces difference.Under these circumstances, the amount of rolling difference of each roller consequently, owing to put on the deflection difference on each limit of wire rod, therefore produces crooked.Thus, in the present invention, straightener is set, is used for the bending that the special-shaped wire section after corrective forming finishes produces at the back segment of forming unit.
The straightener that can be applicable to the building mortion of special-shaped wire section of the present invention has: roll leveller (ロ one ラ one レ ベ ラ one), drawing machine (ワ イ ヤ one ス ト レ Star チ ヤ one), tension flattening machine (テ Application シ ヨ Application レ ベ ラ one), tension Annealing machine (テ Application シ ヨ Application ア ニ one リ Application ゲ), rotary stretcher (ロ one タ リ ス ト レ one Na) etc., can suitably select according to the geomery of the special-shaped wire section of making.
Because drawing machine, tension flattening machine apply excessive tension force when correcting, therefore,, need carry out tension adjustment for the generation of the caused dimensional variations of elongation (dwindling) of the lack of fill that suppresses wire rod pair roller pass and wire rod.So in the building mortion of special-shaped wire section of the present invention, preferred use comparatively speaking not applies roll leveller that tension force also can correct, tension Annealing machine, rotary stretcher etc. to wire rod.
At the leading portion of forming unit, preferably use roll leveller, tension Annealing machine, rotary stretcher etc.
And, at the back segment of forming unit,, need keep the high-precision dimensional accuracy that obtains by rolling, the therefore preferred roll leveller of correcting as cold working that uses because wire rod has been processed into special-shaped shape.And roll leveller wherein is because relative simple structure safeguards that easily the save space voltinism is good, and easy and building mortion string row arrangement, therefore most preferably.Roll leveller is meant to have multistage at above-below direction or transversely be configured to the columnar roller of jagged non-driving, and corrects the device of the bending that produces on special-shaped wire section.
The used roller of this roll leveller can use the roller of outer peripheral face as the plane, or is processed into the roller of concavity by pass.This be because, be that the wire rod of R shape is from laterally when correcting under the roll-in with side (two sides of width), or with plane (upper and lower surface of thickness direction) be the wire rod of taper from above-below direction when correcting under the roll-in, can suppress wire rod and break away from and correct from roller.
Roll leveller can use above-below direction and horizontal combination or use monomers separately according to the shape difference of the distortion that produces on the above-mentioned wire rod (bending).
Be configured as the wire rod before the special-shaped wire section owing to be wound on reel or the cylinder etc., therefore have the distortion (plain bending, transverse curvature) of coiling defective etc. more on the wire rod of emitting by paying out machine.Be to eliminate the plain bending that is produced by this coiling defective etc., the roll leveller of above-below direction that can be by being disposed at leading portion carries out the rectification of plain bending.And transverse curvature also can be carried out the rectification of transverse curvature by the horizontal roll leveller that is disposed at leading portion and be eliminated.
And, on the special-shaped wire section after being configured as odd-shaped cross section, state according to the bending that produces on the wire rod, be configured in roll leveller and the combination of horizontal roll leveller or the monomer separately of the above-below direction that is provided with on the back segment, the bending that produces behind the corrective forming thus can access the special-shaped wire section of high dimensional accuracy.And, for example, is the width dimensions wire rod big with respect to the ratio of gauge of the wire rod after being shaped as piston ring with wire rod or spacer ring wire rod with the siding track in the wire rod, for the rectification of the transverse curvature of this wire rod, the rectification of preferably adopting the roll leveller of above-below direction to depress wire rod.
Fig. 1 represents an example of the building mortion of special-shaped wire section of the present invention.As shown in Figure 1, in an example of the building mortion of special-shaped wire section of the present invention, adopt following structure: the tight rear of paying out machine 1 disposes pressure accumulation dancer roll (ア キ ユ one system ダ Application サ one ロ one Le) 10, leading portion roll leveller (above-below direction) 2, and leading portion roll leveller (laterally) 3, at its back segment, as forming unit the four-roller type turks 4 and the power-actuated four-roller type turks 5 of non-driving are in series arranged Unit 2, again at back segment, dispose the finishing unit 6 that the four-roller type turks by non-driving constitutes, back segment roll leveller (above-below direction) 7 and back segment roll leveller (laterally) 8, double capstan 12, coil winding machine 9.
The dancer roll 11 of the pressure accumulation dancer roll 10 of configuration, configuration between power-actuated four-roller type turks 5 and finishing unit 6 is respectively with keep the certain mode of above-mentioned tension force between the two the to control paying out machine 1 that is disposed at tight the place ahead, the rotating speed of power-actuated four-roller type turks 5 between paying out machine 1 and leading portion roll leveller (above-below direction) 2.
In an example of the building mortion of special-shaped wire section shown in Figure 1, only dispose the four-roller type turks 4 of the non-driving of 1 section leading portion as forming unit, but also can dispose the four-roller type turks of the non-driving more than 2 sections.And the power-actuated four-roller type turks 4 of back segment only disposes 1 section, but also can dispose the power-actuated four-roller type turks more than 2 sections.In addition, forming unit also can in series be arranged a plurality of unit with the four-roller type turks 4 and the power-actuated four-roller type turks 5 of non-driving.And the finishing unit 6 that is made of the four-roller type turks of non-driving only disposes 1 section, but also can dispose the four-roller type turks of the non-driving more than 2 sections.
And in Fig. 1, with the arranged in order of leading portion roll leveller (above-below direction) 2, leading portion roll leveller (laterally) 3, but the order that should dispose also can be opposite.And leading portion roll leveller (above-below direction) 2, leading portion roll leveller (laterally) 3 only dispose 1 section respectively, but also can dispose multistage.
And with the arranged in order of back segment roll leveller (above-below direction) 7, back segment roll leveller (laterally) 8, but the order that should dispose also can be opposite.And back segment roll leveller (above-below direction) 7, back segment roll leveller (laterally) 8 only dispose 1 section respectively, but also can dispose multistage.
Fig. 6 represents another example of the building mortion of special-shaped wire section of the present invention.As shown in Figure 6, in the building mortion of special-shaped wire section of the present invention, can adopt following structure: the backend configuration at paying out machine 1 has pressure accumulation dancer roll 10, leading portion roll leveller (above-below direction) 2, leading portion roll leveller (laterally) 3, at its back segment, in series arrange Unit 3 by the four-roller type turks 4 of non-driving and the forming unit of power-actuated four-roller type turks 5 arranged in series, back segment at each forming unit, dispose the four-roller type turks 4 of non-driving, the back segment of Duan forming unit in the end, finishing unit 6 is in series arranged Unit 2, at the back segment of finishing unit 6, dispose back segment roll leveller (above-below direction) 7 and back segment roll leveller (laterally) 8, double capstan 12, coil winding machine 9.By such configuration forming unit, oil ring wire rod, siding track can be shaped with high dimensional accuracy with wire rod with wire rod and compression ring with wire rod, spacer ring, wherein are best suited for the shaping of oil ring wire rod.
And Fig. 7 represents another example of the building mortion of different in nature wire rod of the present invention.As shown in Figure 7, in the building mortion of special-shaped wire section of the present invention, also can adopt following structure: the backend configuration at paying out machine 1 has pressure accumulation dancer roll 10, leading portion roll leveller (above-below direction) 2, leading portion roll leveller (laterally) 3, at its back segment, in series arrange Unit 3 by the four-roller type turks 4 of non-driving and the forming unit of power-actuated four-roller type turks 5 arranged in series, back segment at forming unit, finishing unit 6 is in series arranged Unit 5, at the back segment of finishing unit 6, dispose back segment roll leveller (above-below direction) 7 and back segment roll leveller (laterally) 8, double capstan 12, coil winding machine 9.By such configuration forming unit, oil ring wire rod, siding track can be shaped with high dimensional accuracy with wire rod with wire rod and compression ring with wire rod, spacer ring, wherein are best suited for the shaping of compression ring with wire rod.
Forming unit in the building mortion of special-shaped wire section of the present invention preferably in series disposes the four-roller type turks 4 and the power-actuated four-roller type turks 5 of non-driving.
By in forming unit, using the four-roller type turks 4 of non-driving, can reduce reduction ratio, consequently, rolling load also reduces.Thus, because wire rod also reduces the reaction force of four-roller type turks, rolling in therefore can the be low zone in the rigidity of four-roller type turks.By rolling in the low zone of the rigidity of four-roller type turks, can suppress by the caused dimensional variations of roller deviation, thereby the special-shaped wire section of the high dimensional accuracy that can be shaped.
And the four-roller type turks 5 by working power in forming unit drives can reduce the place ahead tension force that special-shaped wire section is applied from the spiral pusher side.Thus, even increase reduction ratio,, therefore also can suppress to guarantee the high fill-ratio of pair roller pass by caused dimensional variations of the elongation of wire rod (dwindling) and fracture because the place ahead tension force does not increase with respect to the four-roller type turks 4 of non-driving.
Forming unit in the building mortion of special-shaped wire section of the present invention is preferably in series arranged a plurality of unit with the four-roller type turks 4 and the power-actuated four-roller type turks 5 of non-driving.Thus, can be with the pressure of per 1 four-roller type turks little rate be suppressed to very for a short time, can reduce the wearing and tearing and the breakage of roller.
And, by forming unit is in series arranged a plurality of unit, can move closer in pass shape in the pass schedule of article shape wire forming as roller, the plastic deformation that can not hinder wire rod fluidly carries out the shaping of wire rod.Thus, the special-shaped wire section of the high dimensional accuracy that not only can be shaped, and can omit rolling number of times and intermediate annealing.
The building mortion of special-shaped wire section of the present invention is preferred: at the described back segment of in series arranging the forming unit of a plurality of unit, dispose the single or multiple finishing units 6 that are made of the four-roller type turks of non-driving.For obtaining the special-shaped wire section of high dimensional accuracy, need make depressing of terminal section to gently depressing.Power-actuated four-roller type turks being arranged at terminal section and reduction ratio being suppressed to when being shaped tinily, because producing roller, the driving force of power-actuated four-roller type turks skids, may produce flaw on the special-shaped wire section.Therefore, the finishing unit 6 by the four-roller type turks that adopts by the non-driving that does not have the driving force influence constitutes skids even reduction ratio is suppressed to the very low roller that also can suppress, the special-shaped wire section of the high dimensional accuracy that do not have flaw of can being shaped.
And, by in finishing unit 6, using the four-roller type turks of non-driving, can reduce to press little rate, rolling load also diminishes.Therefore thus, wire rod also diminishes to the reaction force of four-roller type turks, and can be in the rigidity of four-roller type turks low be regional rolling.By low regional rolling of the rigidity of four-roller type turks, can suppress the dimensional variations that the roller deviation causes, the more special-shaped wire section of high dimensional accuracy can be shaped.
Embodiment
As shown in Figure 1, adopt the building mortion of following special-shaped wire section to be rolled: the back segment at paying out machine 1 is provided with pressure accumulation dancer roll 10, leading portion roll leveller (above-below direction) 2, leading portion roll leveller (laterally) 3, at its back segment, in series arrange Unit 2 by the four-roller type turks 4 of non-driving and the forming unit of power-actuated four-roller type turks 5 arranged in series, at the back segment of forming unit, dispose the finishing unit 6 that the four-roller type turks by non-driving constitutes, back segment roll leveller (above-below direction) 7, back segment roll leveller (laterally) 8, double capstan 12, coil winding machine 9.In raw material, adopting diameter is the 0.8%C-17%Cr steel (quality %) of Φ 1.38mm, is configured as shown in Figure 2, and thickness is 0.65mm, and width is 1.85mm, about angular shape different and be respectively the special-shaped wire section of R0.33mm, R0.37mm.
At this moment, the speed of passing through of the back segment roll leveller (above-below direction) 7 of wire rod is 30m/min, is 130N at the rear tension force of the wire rod of the approaching side of roll leveller.And the amount of bow of the special-shaped wire section of mensuration gained as shown in Figure 3, has been measured the transverse curvature amount of the width of every 1m wire rod.
Back segment roll leveller (above-below direction) 7 as shown in Figure 4, making diameter is that the columnar non-driven roller 21~27 of 28mm is configured to jagged 7 sections, the roller spacing is adjusted into P
1=40mm, P
2=42mm, P
3=44mm, P
4=46mm is adjusted into the condition shown in the table 1 with mesh volume and corrects.At this, mesh volume as shown in the schematic diagram of Fig. 5, the amount that expression straightener epimere roller 22 is pressed into respect to the plane of special-shaped wire section.
In this forming experiment,, therefore do not use leading portion roll leveller (above-below direction) 2, the leading portion roll leveller (laterally) 3 of forming unit shown in Figure 1 because raw-material plain bending amount and transverse curvature amount are few.And, on the special-shaped wire section after rolling,, therefore do not use back segment roll leveller (laterally) 8 because the generation of plain bending is few.
The result of forming experiment represents in table 1.As shown in table 1, if do not use roll leveller (above-below direction) 2,7 and roll leveller (laterally) 3,8 special-shaped wire section that is shaped fully in the building mortion of the special-shaped wire section of Fig. 1, then the every 1m of transverse curvature amount is 47mm.
On the other hand, use the transverse curvature amount of the special-shaped wire section that the roll leveller (above-below direction) 7 of the building mortion of special-shaped wire section of the present invention is shaped all corrected for every 1m below 10mm, can confirm validity of the present invention.
Table 1
Claims (4)
1. the building mortion of a special-shaped wire section has the four-roller type turks as forming unit, it is characterized in that,
Leading portion and back segment at described forming unit dispose straightener respectively.
2. special-shaped wire section building mortion according to claim 1 is characterized in that,
Described forming unit is formed by the four-roller type turks and the power-actuated four-roller type turks arranged in series of non-driving.
3. special-shaped wire section building mortion according to claim 1 is characterized in that,
Described forming unit is formed by the four-roller type turks and the power-actuated four-roller type turks arranged in series of non-driving, and, arrange a plurality of these forming units.
4. according to each described special-shaped wire section building mortion in the claim 1~3, it is characterized in that,
In the end the back segment of Duan described forming unit disposes the single or multiple finishing units that are made of the four-roller type turks of non-driving.
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JP2009052360A JP5327610B2 (en) | 2009-03-05 | 2009-03-05 | Molding device for deformed wire rod for piston ring |
JP2009-052360 | 2009-03-05 |
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CN105057387A (en) * | 2015-07-22 | 2015-11-18 | 芜湖楚江合金铜材有限公司 | Copper alloy wire combined forming device |
CN102259147B (en) * | 2011-02-22 | 2015-12-02 | 杭州华裕机械有限公司 | Alignment flat filament machine |
CN105988437A (en) * | 2015-02-10 | 2016-10-05 | 张家港市宏鑫源科技有限公司 | Multi-stage universal rolling mill adopting distributed control system |
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CN102513399A (en) * | 2011-12-31 | 2012-06-27 | 北京北冶功能材料有限公司 | Method for processing special wires for linear bearings |
CN102513399B (en) * | 2011-12-31 | 2014-07-23 | 北京北冶功能材料有限公司 | Method for processing special wires for linear bearings |
CN105988437A (en) * | 2015-02-10 | 2016-10-05 | 张家港市宏鑫源科技有限公司 | Multi-stage universal rolling mill adopting distributed control system |
CN105057387A (en) * | 2015-07-22 | 2015-11-18 | 芜湖楚江合金铜材有限公司 | Copper alloy wire combined forming device |
CN108115000A (en) * | 2018-01-04 | 2018-06-05 | 上海展屿金属科技有限公司 | A kind of manufacturing method and its device of small bore high-precision hairbrush anchor profile shapes |
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Also Published As
Publication number | Publication date |
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JP5327610B2 (en) | 2013-10-30 |
JP2010201492A (en) | 2010-09-16 |
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