CN106216441B - The anti-scratch straightening operation method of multi-cross roll straightening machine - Google Patents
The anti-scratch straightening operation method of multi-cross roll straightening machine Download PDFInfo
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- CN106216441B CN106216441B CN201610745216.XA CN201610745216A CN106216441B CN 106216441 B CN106216441 B CN 106216441B CN 201610745216 A CN201610745216 A CN 201610745216A CN 106216441 B CN106216441 B CN 106216441B
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- roll
- round steel
- straightening
- upper roller
- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/04—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes skew to the path of the work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a kind of anti-scratch straightening operation methods of multi-cross roll straightening machine, comprising: when aligning, changes last group of live-roller, increases angle between the round steel axis of upper roller and roll shaft；Reduce the roll gap between upper roller and lower roll.The present invention changes traditional cross-roll straightening machine method of adjustment, can eliminate the scratch generated by aligning.
Description
Technical field
The present invention relates to a kind of straightener operating methods, specifically, are related to a kind of anti-scratch aligning behaviour of multi-cross roll straightening machine
Make method.
Background technique
Currently, cross-roll straightening machine method of adjustment is single, and it be easy to cause other defect.
The effect that angle is α between roundwood axis and roll shaft is emphasized in cross-roll straightening machine adjustment, does not account for section outlet roundwood axis
Line and up-down rollers between centers angle α, β and drafts importance, skew roller type straightener method of adjustment cause roundwood surface scratches.
Cross roll aligning method is used exclusively for the aligning method of circle cross section web, and roller is tilted with roundwood to intersect, when roller turn
Roundwood not only rotated but also advanced, and helically line style, that is, the orientation bent are changed by spiral shape for press-bending track of the roller to roundwood.And
And the lead of helix is smaller, leveling effect is better.Lead is determined by roller oblique angle and diameter of work (when roundwood axis and roller
Between centers angle is α, when roundwood diameter is d, lead t=π dtan α) and, general lead is only 1/3-the 1/7 of roll spacing, that is
A possibility that roundwood wants rotation 1.5-3.5 to enclose between press-bending, and the chance bent is repeated with reduction, increases aligning.
It is pointed out in " Levelling principle is mechanical with aligning " document, the lead that roller aligns triton spin line is smaller, and leveling effect is better.
Lead is determined that aligning diameter of work is certain by roller oblique angle and diameter of work, and leveling effect sees that the adjustment of roller oblique angle is determined entirely
It is fixed.
It is pointed out in " straightening theory is calculated with parameter " document, angle α between roundwood axis and roll shaft when leveling effect is better
Range and calculation method, aligning diameter of work is certain, and leveling effect sees that the adjustment of roller oblique angle determines entirely.
It is pointed out in " rotating and straightening of metal stocking " document, leveling effect mainly sees straightening roll angle, recurvation amount and pressure
Amount.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of anti-scratch straightening operation methods of multi-cross roll straightening machine, change
Traditional cross-roll straightening machine method of adjustment can eliminate the scratch generated by aligning.
Technical solution is as follows:
A kind of anti-scratch straightening operation method of multi-cross roll straightening machine, comprising:
When aligning, change last group of live-roller, increases angle between the round steel axis of upper roller and roll shaft；
Reduce the roll gap between upper roller and lower roll.
Further, being sized to adjustment roll gap size according to the angle of upper roller.
Further, upper roller and lower roll are curve straightening roll.
Further, angle is 29 ° after upper roller adjustment, angle is 28 ° after lower roll adjustment, roll gap 48.7.
Compared with prior art, the technology of the present invention effect includes:
1, the present invention changes traditional cross-roll straightening machine method of adjustment, can eliminate the scratch generated by aligning.
2, remarkable in economical benefits.
Seven cross-roll straightening machines, effect equidistantly are combined with convex-concave roller in BAOGANG GROUP special steel branch company 50-φ of φ 220
Significantly.
It is calculated with 200,000 tons of annual full production:
Save cost=200000 (annual production)/60 (per tour reconditioning yield per capita) * 100 (per tour wage per capita) ≈
333333 yuan.
Detailed description of the invention
Fig. 1 is the schematic diagram of skew roller type straightener aligning round steel when not adjusting upper roller and lower roll；
Fig. 2 is U-shaped protecting groove and round steel spatial relation graph when not adjusting roller upper roller and lower roll；
Fig. 3 is the schematic diagram of upper roller and lower roll aligning round steel in the present invention；
Fig. 4 is U-shaped protecting groove and round steel spatial relation graph in the present invention.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below with reference to attached drawing of the present invention, to this
Inventive technique scheme carries out clear, complete description, and based on the embodiment in the application, those of ordinary skill in the art are not having
Other similar embodiments obtained under the premise of creative work are made, shall fall within the protection scope of the present application.
As shown in Figure 1, being the schematic diagram of skew roller type straightener aligning round steel when not adjusting upper roller and lower roll；As shown in Fig. 2,
It is U-shaped protecting groove and round steel spatial relation graph when not adjusting upper roller and lower roll.
When equidistant skew roller type straightener aligning, upper roller 1, lower roll 2 align round steel 4, and round steel 4 is from U-shaped protecting groove 3 after the completion of aligning
It is pierced by.Round steel 4 is adjusted by normal aligning by recurvation amount, angle and roll gap, and verticality has reached requirement, but 4 surface of round steel and
U-shaped protecting groove 3 generates scratch, and there is scratch on 4 surface of round steel.
Obtain after analyzing: the reason of causing 4 surface scratches of round steel is not accounted in production, the outlet of skew roller type straightener
Locate angle β between round steel axis and roll shaft, and β is bigger, the protection scope of the more U-shaped protecting groove 3 beyond exit of round steel 4,4 table of round steel
Face scratch is more serious, otherwise 4 surface scratches of round steel are lighter, even without wound.
Table 1 is the parameter before adjustment.
Table 1:Seven cross-roll straightening machines aligning φ 50 is equidistantly combined with convex-concave roller adjusts detail
At this point, the angle β of last group of upper roller (three upper rollers) 1 is 28 °, roll gap 49.3, as a result type protecting groove and round steel occur
Scratch.
As shown in figure 3, being the schematic diagram that upper roller 1 and lower roll 2 align round steel in the present invention；As shown in figure 4, being in the present invention
U-shaped protecting groove 3 and 4 spatial relation graph of round steel.
Step 1: when aligning, changing last group of live-roller, increase angle β between the round steel axis of upper roller 1 and roll shaft；
Step 2: reducing roll gap between upper roller 1 and lower roll 2；
Adjustment roll gap size is sized to according to the angle of upper roller 1.Because straightening roll (upper roller 1, lower roll 2) belongs to curve
Straightening roll, when adjusting the angle, roll gap accordingly becomes larger, so at this time accordingly reducing roll gap, to keep roll gap size.
Table 2 is parameter adjusted.
Table 2:Seven cross-roll straightening machines aligning φ 50 is equidistantly combined with convex-concave roller adjusts detail
The angle β of last group of upper roller (three upper rollers) 1 is 29 °, and angle β is 28 ° after last group of lower roll 2 adjusts, roll gap
It is 48.7, U-shaped protecting groove 3 does not generate scratch with round steel 4.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (1)
1. a kind of anti-U-shaped protecting groove in outlet of multi-cross roll straightening machine scratches straightening operation method, comprising:
When aligning, change last group of transfer roller, increases angle between upper roller roll shaft and round steel axis；
After adjustment, angle is 29 ° between upper roller roll shaft and round steel axis, and angle is 28 ° between lower roll roll shaft and round steel axis, and roll gap is
48.7；
Upper roller and lower roll are curve straightening roll, and roll gap size is adjusted according to angle between upper roller and round steel axis, reduce upper roller and
Roll gap between lower roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745216.XA CN106216441B (en) | 2016-08-29 | 2016-08-29 | The anti-scratch straightening operation method of multi-cross roll straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745216.XA CN106216441B (en) | 2016-08-29 | 2016-08-29 | The anti-scratch straightening operation method of multi-cross roll straightening machine |
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| Publication Number | Publication Date |
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| CN106216441A CN106216441A (en) | 2016-12-14 |
| CN106216441B true CN106216441B (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610745216.XA Active CN106216441B (en) | 2016-08-29 | 2016-08-29 | The anti-scratch straightening operation method of multi-cross roll straightening machine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245472B (en) * | 2021-04-25 | 2022-06-10 | 嘉兴东方钢帘线有限公司 | Device with twisting, bending and straightening functions |
| CN114130814B (en) * | 2021-10-26 | 2024-03-22 | 石钢京诚装备技术有限公司 | Method for controlling flatness of grinding ball steel with high precision |
Citations (10)
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|---|---|---|---|---|
| GB585918A (en) * | 1943-06-23 | 1947-02-28 | John Blair Sutton | Improvements in or relating to straightening by skew rolling |
| US3780558A (en) * | 1971-12-16 | 1973-12-25 | Western Electric Co | Apparatus for straightening elongated members |
| JPS549131U (en) * | 1977-06-22 | 1979-01-22 | ||
| JPH06179017A (en) * | 1992-12-09 | 1994-06-28 | Sumitomo Heavy Ind Ltd | Straightening roll set and straightening machine for steel tube etc., wherein it is used |
| JP2513331Y2 (en) * | 1990-01-25 | 1996-10-02 | 株式会社神戸製鋼所 | Straightener entrance guide device |
| CN2252062Y (en) * | 1995-12-04 | 1997-04-16 | 机械工业部西安重型机械研究所 | Compound roller frame flattener |
| CN101020205A (en) * | 2006-12-25 | 2007-08-22 | 西安重型机械研究所 | Method of regulating inclination angle of straightening roller |
| CN101151111A (en) * | 2005-03-31 | 2008-03-26 | 住友金属工业株式会社 | Automatic control method of roll type pipe correction machine |
| CN202555633U (en) * | 2012-06-04 | 2012-11-28 | 天津市联众钢管有限公司 | Scratching-preventive rotating device of inlet of straightening machine |
| CN105107880A (en) * | 2015-09-15 | 2015-12-02 | 天津正安无缝钢管有限公司 | Straightening machine |
-
2016
- 2016-08-29 CN CN201610745216.XA patent/CN106216441B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB585918A (en) * | 1943-06-23 | 1947-02-28 | John Blair Sutton | Improvements in or relating to straightening by skew rolling |
| US3780558A (en) * | 1971-12-16 | 1973-12-25 | Western Electric Co | Apparatus for straightening elongated members |
| JPS549131U (en) * | 1977-06-22 | 1979-01-22 | ||
| JP2513331Y2 (en) * | 1990-01-25 | 1996-10-02 | 株式会社神戸製鋼所 | Straightener entrance guide device |
| JPH06179017A (en) * | 1992-12-09 | 1994-06-28 | Sumitomo Heavy Ind Ltd | Straightening roll set and straightening machine for steel tube etc., wherein it is used |
| CN2252062Y (en) * | 1995-12-04 | 1997-04-16 | 机械工业部西安重型机械研究所 | Compound roller frame flattener |
| CN101151111A (en) * | 2005-03-31 | 2008-03-26 | 住友金属工业株式会社 | Automatic control method of roll type pipe correction machine |
| CN101020205A (en) * | 2006-12-25 | 2007-08-22 | 西安重型机械研究所 | Method of regulating inclination angle of straightening roller |
| CN202555633U (en) * | 2012-06-04 | 2012-11-28 | 天津市联众钢管有限公司 | Scratching-preventive rotating device of inlet of straightening machine |
| CN105107880A (en) * | 2015-09-15 | 2015-12-02 | 天津正安无缝钢管有限公司 | Straightening machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106216441A (en) | 2016-12-14 |
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