CN1063358C - Guideless rolling method - Google Patents
Guideless rolling method Download PDFInfo
- Publication number
- CN1063358C CN1063358C CN94115762A CN94115762A CN1063358C CN 1063358 C CN1063358 C CN 1063358C CN 94115762 A CN94115762 A CN 94115762A CN 94115762 A CN94115762 A CN 94115762A CN 1063358 C CN1063358 C CN 1063358C
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- CN
- China
- Prior art keywords
- rolling
- roll
- milling train
- rolling device
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/14—Reduction rate
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Four rolling devices 10 are arranged at specified intervals in the intermediate raw in a rolling process. The rolling devices 10 consist of two rolling mills arranged in series. For the arrangement of each rolling roll arranged on the rolling mill, its rotary axial center shifts alternately by 90 deg. to an adjacent another rolling roll. An oval grooved roll is formed on the rolling roll in a first rolling mill on the upstream side, and a circular hole type is formed on the rolling roll in a second rolling mill on the downstream side. The rolling rolls of the two rolling mills comprising the rolling device 10, are driven by one drive motor 18 through a reduction gear 19. A distance between the axial centers of the rolling rolls in the first rolling mill and the second rolling mill, is set to <1.2 times the diameter R of the rolling roll. To shorten a time required for an order change without the holding guide of a material to be rolled and suppress the occurrence of an unacceptable.
Description
The present invention relates to Guideless rolling method, pass through to use a kind of rolling device in this method, maintenance guide groove ground can be set the stocking that is rolled into required cross dimensions through roughing is carried out drawing/rolling, the roll mandrel in the adjacent milling train of the rolling device distance in the heart is set at below 1.2 times of roller diameter.
The rolling shedule of stocking such as bar steel or wire rod can be divided into roughing series usually, series and finish rolling series three major types are rolled in the centre.Be heated to temperature required raw material through roughing with roll the centre and after being rolled into required cross dimensions, be rolled into final required cross dimensions (section configuration) by finish rolling again.Roll in the series in the centre, disposing some milling trains in turn, make to be rolled material, these material extendings are rolled into the required size that is suitable for finish rolling series by these milling trains along the roll line that is rolled material.
Above-mentioned milling train is provided with a pair of rotatable roll on its frame, make to be rolled material and by the roll pass that forms at two roll shop buildings it to be carried out required rolling.Roll in the drawing/rolling of series in above-mentioned centre, above-mentioned roll pass can use the ellipse-circle mode that alternately is configured in turn by oval groove and circular hole, perhaps water chestnut-angle the mode that is become with angle pass alternate configurations by the water chestnut pass.
In above-mentioned ellipse-circle mode, be rolled the side of going into that material enters circular hole, the maintenance guide groove that setting is formed by roller etc., the effect of this maintenance guide groove be with by oval groove rolling be rolled material with the correct body position circular hole that leads so that carry out correct rolling.In addition, under the situation of water chestnut-angle mode,, the same maintenance guide groove that is rolled material also is being set in the side of going into of angle pass in order to ensure the high contraction percentage of area.
In above-mentioned milling train,, must set the screwdown gear that is used to adjust relative roll seam in order to change the cross dimensions that is rolled material.This screwdown gear can be so that a roll carries out moving near leaving relative to another roll that is provided in the fixed position.That is, setting movably pedestal on frame, this pedestal is provided with a rotatable roll, with suitable driving mechanism this pedestal is just moved and can regulate the roll seam.
When the gap that the screwdown gear on being provided in milling train carries out roll was adjusted, the maintenance guide groove that is attached on the milling train also must correspondingly be adjusted to suitable position, therefore existed to follow modification of orders etc. to adjust the elongated shortcoming of required time.In addition,, will cause the off quality of rolled products, so must carry out operations such as the maintenance of bearing, the surface-defect of checking roll, inspection rotary state continually if keep guide groove not guide well.And, owing between each milling train, be provided with the maintenance guide groove, making complex structure, cost of equipment increases.
The present invention is the solution that proposes in view of above-mentioned all problems.Its purpose is to provide a kind of Guideless rolling method, and this method does not need to be rolled the maintenance guide groove of material, thus required time and the generation that suppresses substandard product when shortening modification of orders.
In order to address the above problem, the purpose of phase is given in realization, the feature of Guideless rolling method of the present invention is: use a kind of rolling device, this rolling device is provided with two milling trains that the axis of rotation of adjacent each roll disposes in turn with 90 ° of off normals, and the roll mandrel in two milling trains distance in the heart is below 1.2 times of roller diameter; Along the roll line that is rolled material, dispose several the rolling devices at certain intervals; Make to be rolled material, this material is carried out drawing/rolling by the rolling device.
Accompanying drawing is represented embodiments of the invention, wherein:
Fig. 1 is that the rolling equipment summary pie graph of series and finish rolling series is rolled in the centre of implementing Guideless rolling method of the present invention;
Fig. 2 is the front elevation of Fig. 1 embodiment rolling device;
Fig. 3 is the cross-sectional plan of Fig. 1 embodiment rolling device;
Fig. 4 is the vertical disconnected front elevation of Fig. 1 embodiment the 1st milling train;
Fig. 5 is the general view of Fig. 1 embodiment the 1st milling train;
Fig. 6 is the diagrammatic illustration figure of the screwdown gear in Fig. 1 embodiment the 1st milling train;
Fig. 7 is the roll assortment key diagram of each milling train in Fig. 1 embodiment rolling device;
Fig. 8 be when rolling minor diameter stocking state the phase breaker roll concern key diagram;
Fig. 9 is the key diagram that concerns in rolling axle axle center under state shown in Figure 8 and eccentric part axle center;
Figure 10 be when rolling major diameter stocking state the phase breaker roll concern key diagram;
Figure 11 is the key diagram that concerns in rolling axle axle center under state shown in Figure 10 and eccentric part axle center.
Among the figure, the 10-rolling device, 12-the 1st milling train, the 13-roll, 14-the 2nd milling train, the 15-roll, 20-is rolled material, the PL-roll line.
Below, with reference to the most preferred embodiment of description of drawings Guideless rolling method of the present invention.Fig. 1 represents to implement centre in the rolling equipment of Guideless rolling method of the present invention and rolls the summary of series and finish rolling series and constitute.Roll in the series in the centre, some (in the present embodiment being four) rolling devices 10 with required arranged spaced.Each rolling device 10 is setting two milling trains 12,14 as shown in Figure 7 in turn, and the axis of rotation that is provided in each roll 13,15 on the milling train 12,14 is with respect to 90 ° of the mutual off normals of adjacent rollers.In this embodiment, be provided in to be positioned at and be rolled material 20 and give direction, the axle center of the roll 13 on the 1st milling train 12 of upstream side is levels, and the axle center that is provided in the roll 15 on the 2nd milling train 14 in downstream is vertical.On the roll 13,13 of the 1st milling train 12, form oval groove, on the roll 15,15 of the 2nd milling train 14, form circular hole.The section configuration that is rolled material 20 by this rolling device 10 becomes and is circle.The roll 13,15 that constitutes two milling trains 12,14 of rolling device 10 is driven by a CD-ROM drive motor 18 by reductor 19.The 2 passage contraction percentages of area in each rolling device 10 are 25%-40%.
As shown in Figure 7, the axle center of the roll 13,15 in above-mentioned the 1st milling train 12 and the 2nd milling train 14 is below 1.2 times of roll 13 (15) diameters to distance P.Owing to distance between the axle center of having shortened this adjacent rollers 13,15, just need between two milling trains 12,14, not be provided with and be rolled the maintenance guide groove of material 20, and can be correctly being delivered in the circular hole of the 2nd milling train 14 by the material 20 of the rolling mistake of oval groove of the 1st milling train 12.That is, can omit the adjustment operation of the maintenance guide groove of following modification of orders and need carrying out.Check operation etc., also stopped defective work simultaneously because of keeping guide groove to cause.In addition, owing to do not keep guide groove, roll the length of series in the middle of can shortening.Moreover, at the roll that is formed with circular hole between the roll that is formed with oval roller, promptly between each rolling device 10,10, keep guide groove can set bit wide at interval because of not establishing, therefore, in this example, as shown in Figure 1, roll in the centre between the 2nd rolling device 10 of upstream side and the 3rd rolling device 10 of series, and between the 3rd rolling device 10 and the 4th rolling device 10, set cooling body 40 respectively.40 pairs of this cooling bodies are because of being cooled off by each rolling device 10 rolling stocking that heat up 20, and make the temperature of this material 20 remain on to be suitable for the temperature that rolling device 10 is rolling.In the present embodiment, setting two groups of finishing mills 42 that respectively are provided with 3 milling trains, constituting finish rolling series along the roll line PL that is rolled material 20.
Here, the screwdown gear to the gap of the phase breaker roll in the milling train 12,14 13,13/15,15 is adjusted by adopting aftermentioned mechanism, can the following describes the structure of milling train 12,14 so that the axle center spacing P of roll 13,15 sets shortly.
Fig. 3 is the cross-sectional plan of rolling device 10.The structure of the 1st milling train 12 and the 2nd milling train 14, except that 90 ° of the mutual one-tenth of the axis of rotation of adjacent rollers 13,15, other structures are roughly the same, so, only the structure to the 1st milling train 12 describes, and the same parts of the 2nd milling train 14 represent that with same tag its explanation is omitted.
Setting pedestal 24 on the frame 22 of rolling device 10 shown in Figure 2, as shown in FIG., on this pedestal 24, on the upper-lower position of the roll line PL that is rolled material 20 in clamping deflection downstream side part, wearing a pair of through hole 24a, 24a in the direction of intersecting with roll line PL.On each through hole 24a, adorning a pair of revolution eccentric part 26,26 freely in the axially-spaced certain intervals, on two eccentric parts 26,26, wearing eccentric through-hole 26a, the 26a of the axle center off-centre of the relative through hole 24a in axle center, in two eccentric through- hole 26a, 26a, intert by bearing 30,30 and to support rolling axle 28.On this rolling axle 28, in the position that faces between two eccentric parts 26,26, the integrally rotated roll 13 of energy in outer embedding, makes to be rolled material 20 by by the pass that becomes breaker roll 13,13 to form up and down, and this material 20 is carried out intermediate rolling.As shown in Figure 9, rolling axle 28 interts and is bearing in the eccentric through-hole 26a of eccentric part 26 its axle center C
1Axle center C with respect to eccentric part 26
2Depart from aequum, make 26, the 26 forward and reverse rotations of two eccentric parts, make the axle center C of rolling axle 28 with aftermentioned mechanism
1Off normal.
The upstream side of rolling axle 28,28 equipping positions in above-mentioned pedestal 24, setting a pair of rotating adjustment axle 32,32, this is exchanged bearing 32,32 and intersects with rolling axle 28,28, its position be embedded in outward about eccentric part 26,26 on rolling 28,28 corresponding.Adjust on the axle 32, as Fig. 4 and shown in Figure 6, can integrally rotated worm screw 34 in outer embedding respectively at each, the position of this worm screw be positioned at outside to be embedded in each eccentric part 26 on roll 13,13 left sides on rolling 28,28 or right side corresponding.The tooth 26b engagement of each worm screw 34 eccentric part 26 periphery pairing with it.Be provided in each and adjust two worm screws 34,34 on the axle 32, its hand of spiral is opposite, and is identical with the hand of spiral of the corresponding worm screw 34,34 of eccentric part 26,26 on being embedded in same rolling axle 28 outward.As shown in Figure 5, at two axle heads of adjusting axle 32,32, setting respectively can be integrally rotated gear 36, two gears 36,36 are common props up adjustment gear 38 engagements on pedestal 24 with pivot rotationally.That is, when adjusting gear 38 by the forward and reverse driving of driving mechanisms such as motor, a pair of adjustment axle 32,32 rotates to same direction, and corresponding eccentric part 26,26 rotates by each worm screw 34,34.Its result is bearing in that distance changes (Fig. 9, Figure 11) between axle center of the rolling axle 28,28 of on a pair of eccentric part 26,26 each, and the gap of phase breaker roll 13,13 is adjusted (Fig. 8, Figure 10).
As previously mentioned, utilized eccentric part 26 in the screwdown gear, in the 1st milling train 12 that adopts this screwdown gear, as shown in Figure 3, the gauge of the downstream of pedestal 24 (rolling axle 28 is established side partially) is set as thin as a wafer.And in the 2nd milling train 14, as shown in Figure 3, establish rolling axle 28 in the upstream of pedestal 24 lateral deviation, like this, the gauge of the upstream side of pedestal 24 is set as thin as a wafer.The 1st milling train 12 and the 2nd milling train 14 with its thickness as thin as a wafer side opposite to each other disposed adjacent, therefore, just can set apart from P between roll 13,15 axle center of two milling trains 12,14 becomes below 1.2 times of this roll 13 (15) diameter R.
Below, illustrate by the rolling device that uses above-mentioned structure to constitute the action that the middle rolling equipment that rolls series is implemented Guideless rolling method of the present invention.After being rolled material 20 and being rolled into required cross dimensions by the roughing series in the rolling equipment, be imported in the 1st milling train 12 of the 1st rolling device 10 that is configured in upstream shown in Figure 1, by being formed on the oval groove between the phase breaker roll 13,13 on this milling train 12, implement required rolling.This is rolled between the roll 15,15 that material 20 then supplies to the 2nd milling train 14, implements required rolling by being formed on circular hole between this roll 15,15.At this moment, owing to be set in below 1.2 times of these roll 13 diameters apart from P between the axle center of the roll 13,15 of the 1st milling train 12 and the 2nd milling train 14, so the maintenance guide groove that is not provided with in the past also can correctly be supplied with the pass of the 2nd milling train 14 with being rolled material 20.In addition, the roll 13,13 in the 1st milling train 12 also plays a part to be rolled the maintenance guide groove of material 20, can effectively prevent twisting of this material 20 etc.That has passed through the 2nd milling train 14 is rolled material 20, is imported into the 2nd rolling device 10 again, is implemented required rolling by the 1st milling train 12 and the 2nd milling train 14.
As shown in Figure 1, that has passed through above-mentioned the 2nd rolling device 10 is rolled material 20, and by cooling body 40 coolings, its temperature is imported into the 3rd rolling device 10 after being lowered to and being fit to rolling temperature again, implements required rolling.Similarly, passed through the 3rd rolling device 10 be rolled material 20 by cooling body 40 cooling after, be imported into the 4th rolling device 10 that is configured in downstream, implement required rolling.After being rolled material 20 and being rolled into the section configuration that is suitable for finish rolling, supply with two groups of finishing mills 42 that constitute finish rolling series, implement required finish rolling by rolling device 10.
Below, the gap adjustment action of phase breaker roll in the milling train is described with regard to the 1st milling train 12.At first, rolling minor diameter be rolled material 20 time, as shown in Figure 8, the gap of phase breaker roll 13,13 in the 1st milling train 12 is set at desirable value, simultaneously, make two rolls 13,13 mutually through opposite spin.At this moment, the axle center C of the rolling axle 28 of the 1st milling train 12
1Axle center C with eccentric part 26
2Be relation shown in Figure 9.Therefore, be rolled material 20 if supply with between two rolls 13,13 of the 1st milling train 12, this material 20 is supplying to the 2nd milling train 14 through required after rolling.
Then, work as modification of orders, need at this rolling device 10 rolling large diameterly when being rolled material 20, above-mentioned adjustment gear 38 is rotated toward required directions, make two to adjust axle 32,32 and rotate toward same directions by driving mechanism.As shown in Figure 4, be provided in the worm screw of respectively adjusting on the axle 32 34,34 owing to mesh with the tooth 26b, the 26b that are embedded in the eccentric part 26,26 on the rolling axle 28 of above-mentioned upside or downside outward, so, along with the rotation of adjusting axle 32, eccentric part 26,26 rotates through required direction in the through hole 24a of pedestal 24.In addition, because the hand of spiral that is provided in the worm screw 34,34 on the adjustment axle 32,32 is as above-mentioned setting, so the eccentric part 26,26 of upside and the eccentric part 26,26 of downside oppositely rotate mutually, as shown in figure 11, be bearing in the axle center C that is the rolling axle 28,28 on the eccentric part 26,26
1, C
1Distance change.Like this, as shown in figure 10, the gap that is embedded in the relative roll 13,13 on the rolling axle 28,28 outward broadens.When the gap of roll 13,13 reaches according to the size that is rolled material 20 and during predetermined value, stops to adjust the rotation of gear 38, the constipation bundle is adjusted in the gap.Therefore, modification of orders be rolled material 20 if supply with the 1st milling train 12, then implement required rolling by 13,13 pairs of these materials of phase breaker roll 20.
Like this, use thisly, just the maintenance guide groove that is rolled material 20 can be set and roll series in the middle of constituting the rolling device below 1.2 times 10 that is set at roller diameter between the axle center of adjacent rollers 13,15 apart from P.That is, can dispense adjustment operation, the inspection operation of the maintenance guide groove that need carry out, the lost time in the time of can reducing modification of orders, improve and make efficient along with modification of orders.In addition, also can avoid defective work, simultaneously, roll the length of series in the middle of can shortening, effectively utilize the space in the factory because of keeping guide groove to occur.
In addition, the roll configuration of each milling train in rolling device relation except that illustrated embodiment, can also have variety of way.For example, also can make the axle center of the roll 13 of the 1st milling train 12 vertically, level is made in the axle center of the roll 15 of the 2nd milling train 14.In the present embodiment, be to drive two milling trains constituting rolling device with a CD-ROM drive motor, CD-ROM drive motor drives each milling train respectively but also can adopt independently.Also have,, the roll of the 1st milling train and the respectively relative horizontal plane of roll of the 2nd milling train are tilted 45 ° as rolling device.
As mentioned above, Guideless rolling method of the present invention, by use between a kind of axle center that makes adjacent rollers distance set short rolling device, can roll series in the centre and not be provided with and keep guide groove ground to carry out rolling well being rolled material.That is, be not rolled the maintenance guide groove facility of material, can reduce cost so that simple structureization, and, can avoid defective work because of keeping guide groove to cause, can also dispense time-consuming, bothersome adjustment operation when modification of orders, check operation etc.
Claims (1)
1. a no guide groove hot rolling system method is used a kind of rolling device, and this rolling device is provided with two milling trains that the axis of rotation of adjacent each roll disposes in turn with 90 ° of off normals, and distance is set at below 1.2 times of roller diameter between the axle center of the roll in two milling trains; Along the roll line that is rolled material, dispose several the rolling devices at certain intervals; Make to be rolled material by the rolling device, this material is carried out drawing/rolling, it is characterized in that, the rolling contraction percentage of area of 2 passages in the rolling device is set in the 25%-40% scope.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP230942/93 | 1993-08-23 | ||
| JP230942/1993 | 1993-08-23 | ||
| JP23094293A JP3289427B2 (en) | 1993-08-23 | 1993-08-23 | Guideless rolling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1104939A CN1104939A (en) | 1995-07-12 |
| CN1063358C true CN1063358C (en) | 2001-03-21 |
Family
ID=16915727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94115762A Expired - Fee Related CN1063358C (en) | 1993-08-23 | 1994-08-22 | Guideless rolling method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3289427B2 (en) |
| KR (1) | KR100345184B1 (en) |
| CN (1) | CN1063358C (en) |
| TW (1) | TW253851B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3364814B2 (en) * | 1994-08-05 | 2003-01-08 | 大同特殊鋼株式会社 | Method for producing martensitic stainless steel wire rod |
| JP3487469B2 (en) * | 1994-08-05 | 2004-01-19 | 大同特殊鋼株式会社 | Wire rod manufacturing method |
| KR100260592B1 (en) * | 1998-02-24 | 2000-07-01 | 곽해수 | Process for preparation for microencapsulated β-D-galactosidase using fatty acid ester and milk supplemented with it |
| KR20030010351A (en) * | 2001-07-26 | 2003-02-05 | 파스퇴르유업 주식회사 | Milk adding lactase and preperation thereof |
| CN100408209C (en) * | 2004-01-18 | 2008-08-06 | 宝山钢铁股份有限公司 | Small-norm steel rod continuous rolling method and its guide and guards |
| JP5120802B2 (en) * | 2006-11-17 | 2013-01-16 | 独立行政法人物質・材料研究機構 | Warm rolling device, warm rolling method, and warm / cold continuous processing device |
| CN103350106B (en) * | 2013-07-09 | 2015-08-26 | 富通集团有限公司 | A kind of copper bar production method |
| IT201900022521A1 (en) * | 2019-11-29 | 2021-05-29 | Primetals Tech Italy S R L | Rolling method for solid sections and rolling mill |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55103204A (en) * | 1979-01-31 | 1980-08-07 | Nippon Steel Corp | Continuous rolling apparatus |
| JPS61150703A (en) * | 1984-12-24 | 1986-07-09 | Keiichiro Yoshida | Method and device for working metallic stock by roll die |
-
1993
- 1993-08-23 JP JP23094293A patent/JP3289427B2/en not_active Expired - Lifetime
-
1994
- 1994-08-03 TW TW083107090A patent/TW253851B/zh not_active IP Right Cessation
- 1994-08-22 CN CN94115762A patent/CN1063358C/en not_active Expired - Fee Related
- 1994-08-23 KR KR1019940020999A patent/KR100345184B1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55103204A (en) * | 1979-01-31 | 1980-08-07 | Nippon Steel Corp | Continuous rolling apparatus |
| JPS61150703A (en) * | 1984-12-24 | 1986-07-09 | Keiichiro Yoshida | Method and device for working metallic stock by roll die |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3289427B2 (en) | 2002-06-04 |
| CN1104939A (en) | 1995-07-12 |
| KR100345184B1 (en) | 2002-11-23 |
| JPH0760301A (en) | 1995-03-07 |
| TW253851B (en) | 1995-08-11 |
| KR950005393A (en) | 1995-03-20 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010321 Termination date: 20130822 |