CN104259257B - A kind of continuous recurvation Apparatus for () and method therefor of rolled metal composite strip - Google Patents
A kind of continuous recurvation Apparatus for () and method therefor of rolled metal composite strip Download PDFInfo
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- CN104259257B CN104259257B CN201410460274.9A CN201410460274A CN104259257B CN 104259257 B CN104259257 B CN 104259257B CN 201410460274 A CN201410460274 A CN 201410460274A CN 104259257 B CN104259257 B CN 104259257B
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- metal composite
- roller group
- pair roller
- convex surface
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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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
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Abstract
The present invention provides the continuous recurvation Apparatus for () and method therefor of a kind of rolled metal composite strip, equipment includes frame, be arranged in frame the pair roller group being made up of convex surface roller and concave roll and pinch roll pair, pair roller group sets gradually the first pair roller group, the second pair roller group, the 3rd pair roller group from entrance to Way out, and convex surface roller quantity is successively decreased successively.By relative with the convex surface of recurvation roller for the convex surface of the metal composite band after rolling, the entrance of continuous recurvation equipment is sent into length direction, successively metal composite band is applied continuous depressing force by the first pair roller group, the second pair roller group and the 3rd pair roller group, exported by pinch roll again, namely complete the recurvation to rolled metal composite strip.The present invention makes the metal level that the thermal coefficient of expansion being in external diameter direction is big reach elastic-plastic deformation district, produce the permanent deformation elongation of trace, the microscopic length making two kinds of metals reaches basically identical, eliminating rolled metal composite strip " the convex back of the body " defect, the band after recurvation just can reach the requirement of glacing flatness then through conventional sheet material leveling equipment.
Description
Technical field
The present invention relates to the continuous recurvation Apparatus for () and method therefor of a kind of rolled metal composite strip, belong to metal material finishing technique field.
Background technology
Rolled metal composite board is the description of materials of material manufacturing focus development in recent years, owing to metallic composite panel is with metal material composition 2 kinds different, in use can utilize the speciality of 2 kinds of materials fully, reach the result of use of economical and efficient, thus more and more receive publicity.Rolled metal composite board is to manufacture with milling train at high operating temperatures, and two nugget genus are under high temperature and high pressure effect, and its faying face is metallurgical binding state, and binding strength is significantly high.Such as Fig. 1, owing to the thermal coefficient of expansion of bi-material is different, some difference is also relatively larger, and band is when high temperature rolling state, under the effect of roll-force, its microscopic length is equal, and material is in straightened condition, after material is cooled to room temperature, owing to amount of contraction is different, two kinds of metal length on microcosmic are unequal, and 1, the metal that thermal coefficient of expansion is big is shorter, thus 2, the metal that the thermal coefficient of expansion connected together with it is little is produced bigger tension.Sheet material to the bigger one side contraction distortion of thermal coefficient of expansion, can make material " the convex back of the body " phenomenon occur under action of pulling stress, and composite is more thin, and " the convex back of the body " phenomenon is more serious.Used leveling technology is to adopt traditional plate straightening roll, sheet stretcher or sheet material planisher to process.These treatment technologies can only discharge the band tension in rolling (length) direction, it is impossible to the tension of release band cross-sectional direction, thus still there is significantly " the convex back of the body " phenomenon in cross-sectional direction, and the flatness of sheet material does not reach the requirement of national standard.Rolled metal composite board " the convex back of the body " phenomenon is the difficult problem affecting thin slab product presentation quality at present, has a strong impact on application and the popularization of thin slab product, is badly in need of solving.
Summary of the invention
For solving " the convex back of the body " problem of rolled metal composite board, the present invention provides the continuous recurvation Apparatus for () and method therefor of a kind of rolled metal composite strip.
The present invention is achieved through the following technical solutions: the continuous recurvation equipment of a kind of rolled metal composite strip, including frame, the pair roller group being made up of convex surface roller and concave roll being arranged in frame and pinch roll, it is characterised in that: described pair roller group sets gradually following pair roller group from entrance to Way out:
First pair roller group, including multiple parallel convex surface rollers and a concave roll being correspondingly arranged, left and right two rollers of the outermost end in convex surface roller are set to curved surface roller, and the inner face diameter of each curved surface roller is more than outer face diameter, and intermediate calender rolls is cylindrical roll；
Second pair roller group, the convex surface roller parallel including at least two and a concave roll being correspondingly arranged, two rollers of the outermost end in convex surface roller are set to curved surface roller, and the inner face diameter of each curved surface roller is more than outer face diameter；
3rd pair roller group, including a convex surface roller and a concave roll being correspondingly arranged, convex surface roller is curved surface roller；
Described first pair roller group, the second pair roller group, the 3rd pair roller group convex surface roller quantity successively decrease successively.
The mid portion of the concave roll roll surface of described first pair roller group and the second pair roller group is flat face, and left and right two ends are set to the concave curved surface adapted with convex surface roller convex surface.
The concave roll roll surface of described 3rd pair roller group is set to the concave curved surface adapted with convex surface roller convex surface.
Described first pair roller group is at least provided with one group.
Described second pair roller group is at least provided with one group.
Described 3rd pair roller group is at least provided with one group.
Described pinch roll is connected with conventional leveling equipment.
Described concave roll and line shaft are in transmission connection, to complete under driving at line shaft to rotate.
Described convex surface roller is moved up and down by Driven by Hydraulic Cylinder, in order to provides to band head when band threading and passes through space.
The concave roll position of described first pair roller group, the second pair roller group, the convex surface roller of the 3rd pair roller group and correspondence, overall can exchange and use, so that convex ventricumbent band is carried out recurvation process.
Another object of the present invention is to provide a kind of continuous recurvation method of rolled metal composite strip, it is characterised in that through the following step:
(1) by the convex back side of metal composite band after rolling towards convex surface roller, the entrance of continuous recurvation equipment is sent into length direction；
(2) metal composite band enters between the first pair roller group by entrance, the depressing force applied is greater than the non-deformability of material, the two ends of metal composite band are carried out recurvation process, the middle part of metal composite band keeps straight, makes the contraflexure radius at metal composite band two ends less than critical contraflexure radius RInstead, wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness；Critical contraflexure radius is the maximum deflection radius that band initially enters plastically deforming area；
(3) the metal composite band of step (2) enters between the second pair roller group, the depressing force applied is greater than the non-deformability of material, the two ends of metal composite band are carried out recurvation process, the middle part of metal composite band keeps straight, makes the contraflexure radius at metal composite band two ends less than critical contraflexure radius RInstead, wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness；
(4) the metal composite band of step (3) enters between the 3rd pair roller group, the depressing force applied is greater than the non-deformability of material, to carrying out recurvation process in the middle part of metal composite band, make the contraflexure radius in the middle part of metal composite band less than critical contraflexure radius RInstead, wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness；
(5) step (4) metal composite band enter pinch roll between, apply depressing force, by after recurvation metal composite band flatten, in order to by metal composite band send into level(l)ing machine.
The metal composite band of described step (5) enters the conventional leveling equipment of postorder, rolled metal composite strip is carried out leveling, obtains qualified products.
Advantage that the present invention possesses and effect: owing to the production of band is continuous print, equipment provided by the invention can be implemented continuous print transverse direction recurvation from the length direction of band and process.The present invention adopts recurvation mode to discharge the internal stress in the bigger metal of cross-sectional direction stress, and material is under initial condition, and the metal covering that internal stress is big is in the internal diameter direction of arc, and recurvation leveling technique is exactly that original original arc is carried out back-flexing.When recurvation radius is little to a certain extent, the metal level that the thermal coefficient of expansion being in external diameter direction can be made big reaches elastic-plastic deformation district, produce the permanent deformation elongation of trace, the microscopic length making two kinds of metals reaches basically identical, can eliminating rolled metal composite strip " the convex back of the body " defect, the band after recurvation just can reach the requirement of glacing flatness then through conventional sheet material leveling equipment.Equipment provided by the invention is reasonable in design, and simple in construction is easy to use, and the method can effectively overcome the convex back of the body phenomenon of composition metal band.
Accompanying drawing explanation
Fig. 1 is the cross section original-shape schematic diagram of rolled metal composite strip；
Fig. 2 is the schematic shapes of metal composite band before and after the continuous recurvation of the present invention；
Fig. 3 is the structural representation of continuous recurvation equipment；
Fig. 4 is the structural representation of the first pair roller group；
Fig. 5 is the structural representation of the second pair roller group；
Fig. 6 is the structural representation of the 3rd pair roller group.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment 1
Such as Fig. 2,3,5,6, the continuous recurvation equipment of rolled metal composite strip provided by the invention includes frame, be arranged in frame the pair roller group being made up of convex surface roller and concave roll and pinch roll 8, described pair roller group sets gradually following pair roller group from entrance to Way out:
First pair roller group 5, including three parallel convex surface rollers 52, 53, 54 and a concave roll being correspondingly arranged 51, a left side for outermost end in convex surface roller, right two rollers 52 and 54 are set to curved surface roller, the inner face diameter of 52 and 54 curved surface rollers is more than outer face diameter, intermediate calender rolls 53 is cylindrical roll, the roll surface mid portion of concave roll 51 is flat face, left, right two ends are set to and convex surface roller 52, the concave curved surface that 54 convex surfaces adapt, convex surface roll shaft 55, concave surface roll shaft 57 two ends are fixed in frame each through bearing and bearing block 56, and concave surface roll shaft 57 is in transmission connection with line shaft, to make concave surface roll shaft 57 and concave roll thereon 51 rotate under driving at line shaft, and then drive convex surface roll shaft 55 and convex surface roller 52, 53, 54 rotate, complete the recurvation of metal composite band 3；
Second pair roller group 6, including two parallel convex surface rollers 62, 63 and a concave roll being correspondingly arranged 61, 62, 63 two convex surface rollers are set to the inner face diameter curved surface roller more than outer face diameter, the centre of concave roll 61 roll surface is flat face, left, right two ends are set to and convex surface roller 62, the concave curved surface that 63 convex surfaces adapt, convex surface roll shaft 64, concave surface roll shaft 66 two ends are fixed in frame each through bearing and bearing block 65, and concave surface roll shaft 66 is in transmission connection with line shaft, to make concave surface roll shaft 66 and concave roll thereon 61 rotate under driving at line shaft, and then drive convex surface roll shaft 64 and convex surface roller 62, 63 rotate, complete the recurvation of metal composite band 3；
3rd pair roller group 7, including a convex surface roller 72 and a concave roll being correspondingly arranged 71, the roll surface of convex surface roller 72 is that mid diameter is big, the convex surface that two ends diameter is little, the roll surface of concave roll 71 is the concave curved surface that the convex surface with convex surface roller 72 adapts, convex surface roll shaft 73, concave surface roll shaft 75 two ends are fixed in frame each through bearing and bearing block 74, and concave surface roll shaft 75 is in transmission connection with line shaft, to make concave surface roll shaft 75 and concave roll thereon 71 rotate under driving at line shaft, and then drive convex surface roll shaft 73 and convex surface roller 72 to rotate, complete the recurvation of metal composite band 3；
Described first pair roller group the 5, second pair roller group the 6, the 3rd pair roller group 7 is respectively provided with one group, and described pinch roll 8 is connected with conventional leveling equipment.
Described convex surface roller and concave roll are completed to move up and down by Driven by Hydraulic Cylinder routinely, in order to provide to band 3 head when metal composite band 3 threading and pass through space.
Method rolled metal composite strip being carried out continuous recurvation with above-mentioned continuous recurvation equipment is as follows:
(1) by the convex back side of metal composite band after rolling towards convex surface roller, the entrance of continuous recurvation equipment is sent into length direction；
(2) metal composite band enters between the first pair roller group by entrance, the depressing force applied is greater than the non-deformability of material, the two ends of metal composite band are carried out recurvation process, the middle part of metal composite band keeps straight, makes the contraflexure radius at metal composite band two ends less than critical contraflexure radius RInstead(i.e. R1 in Fig. 4, wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness；Critical contraflexure radius is the maximum deflection radius that band initially enters plastically deforming area.
(3) the metal composite band of step (2) enters between the second pair roller group, the depressing force applied is greater than the non-deformability of material, the two ends of metal composite band are carried out recurvation process, the middle part of metal composite band keeps straight, makes the contraflexure radius at metal composite band two ends less than critical contraflexure radius RInstead(i.e. R2 in Fig. 5), wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness；
(4) the metal composite band of step (3) enters between the 3rd pair roller group, the depressing force applied is greater than the non-deformability of material, to carrying out recurvation process in the middle part of metal composite band, make the contraflexure radius in the middle part of metal composite band less than critical contraflexure radius RInstead(i.e. R3 in Fig. 6), wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness, and R1=R2=R3 is consistent to ensure sheet material reverse bend curvature over the entire width；
(5) step (4) metal composite band enter pinch roll between, apply depressing force, by after recurvation metal composite band flatten, in order to by metal composite band send into level(l)ing machine.
(6) the metal composite band of step (5) enters the conventional leveling equipment of postorder, rolled metal composite strip is carried out leveling, obtains qualified products.
Embodiment 2
The continuous recurvation device structure of rolled metal composite strip and method and embodiment 1 are identical, only the convex surface roller of each pair roller group and concave roll position are swapped.
Claims (10)
1. a continuous recurvation equipment for rolled metal composite strip, including frame, the pair roller group being made up of convex surface roller and concave roll being arranged in frame and pinch roll, it is characterised in that: described pair roller group sets gradually following pair roller group from entrance to Way out:
First pair roller group, including multiple parallel convex surface rollers and a concave roll being correspondingly arranged, left and right two rollers of the outermost end in convex surface roller are set to curved surface roller, and the inner face diameter of each curved surface roller is more than outer face diameter, and intermediate calender rolls is cylindrical roll；
Second pair roller group, the convex surface roller parallel including at least two and a concave roll being correspondingly arranged, two rollers of the outermost end in convex surface roller are set to curved surface roller, and the inner face diameter of each curved surface roller is more than outer face diameter；
3rd pair roller group, including a convex surface roller and a concave roll being correspondingly arranged, convex surface roller is curved surface roller；
Described first pair roller group, the second pair roller group, the 3rd pair roller group convex surface roller quantity successively decrease successively.
2. the continuous recurvation equipment of rolled metal composite strip according to claim 1, it is characterized in that: the mid portion of the concave roll roll surface of described first pair roller group and the second pair roller group is flat face, left and right two ends are set to the concave curved surface adapted with convex surface roller convex surface.
3. the continuous recurvation equipment of rolled metal composite strip according to claim 1, it is characterised in that: the concave roll roll surface of described 3rd pair roller group is set to the concave curved surface adapted with convex surface roller convex surface.
4. the continuous recurvation equipment of rolled metal composite strip according to claim 1, it is characterised in that: described first pair roller group is at least provided with one group, and the second pair roller group is at least provided with one group, and the 3rd pair roller group is at least provided with one group.
5. the continuous recurvation equipment of rolled metal composite strip according to claim 1, it is characterised in that: described pinch roll is connected with conventional leveling equipment.
6. the continuous recurvation equipment of rolled metal composite strip according to claim 1, it is characterised in that: described concave roll and line shaft are in transmission connection.
7. the continuous recurvation equipment of rolled metal composite strip according to claim 1, it is characterised in that: described convex surface roller is moved up and down by Driven by Hydraulic Cylinder.
8. the continuous recurvation equipment of rolled metal composite strip according to claim 1, it is characterised in that: the concave roll position of described first pair roller group, the second pair roller group, the convex surface roller of the 3rd pair roller group and correspondence, overall exchange uses.
9. the continuous recurvation method of a rolled metal composite strip, it is characterised in that through the following step:
(1) by the convex back side of metal composite band after rolling towards convex surface roller, the entrance of continuous recurvation equipment is sent into length direction；
(2) metal composite band enters between the first pair roller group by entrance, and the two ends of metal composite band are carried out recurvation process, and the middle part of metal composite band keeps straight, makes the contraflexure radius at metal composite band two ends less than critical contraflexure radius RInstead, wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness；
(3) the metal composite band of step (2) enters between the second pair roller group, and the two ends of metal composite band are carried out recurvation process, and the middle part of metal composite band keeps straight, makes the contraflexure radius at metal composite band two ends less than critical contraflexure radius RInstead, wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness；
(4) the metal composite band of step (3) enters between the 3rd pair roller group, to carrying out recurvation process in the middle part of metal composite band, makes the contraflexure radius in the middle part of metal composite band less than critical contraflexure radius RInstead, wherein critical contraflexure radius RInstead=δ/0.0012, δ is sheet metal thickness；
(5) step (4) metal composite band enter pinch roll between, apply depressing force, by after recurvation metal composite band flatten, in order to by metal composite band send into level(l)ing machine.
10. the continuous recurvation method of rolled metal composite strip according to claim 9, it is characterised in that the metal composite band of described step (5) enters the conventional leveling equipment of postorder, rolled metal composite strip is carried out leveling, obtains qualified products.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460274.9A CN104259257B (en) | 2014-09-11 | 2014-09-11 | A kind of continuous recurvation Apparatus for () and method therefor of rolled metal composite strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460274.9A CN104259257B (en) | 2014-09-11 | 2014-09-11 | A kind of continuous recurvation Apparatus for () and method therefor of rolled metal composite strip |
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| CN104259257A CN104259257A (en) | 2015-01-07 |
| CN104259257B true CN104259257B (en) | 2016-06-29 |
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| CN111618139B (en) * | 2020-05-11 | 2022-02-08 | 武汉科技大学 | Asymmetric circular bending deformation device for metal plate strip |
| CN117464168B (en) * | 2023-12-19 | 2024-05-14 | 唐山鼎益金属制品有限公司 | Steel coil cutting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0847721A (en) * | 1994-08-08 | 1996-02-20 | Nippon Light Metal Co Ltd | Method and device for manufacturing plate-shaped profile |
| EP1491270A1 (en) * | 2003-06-25 | 2004-12-29 | Kohler Maschinenbau GmbH | Leveling machine |
| CN1583303A (en) * | 2004-06-09 | 2005-02-23 | 沈阳工业大学 | Rolling method and apparatus for copper-aluminium double-face composite board |
| CN102397913A (en) * | 2011-11-15 | 2012-04-04 | 山东宏康机械制造有限公司 | Working roll adjusting device for roll leveler |
| CN204074831U (en) * | 2014-09-11 | 2015-01-07 | 云南昆钢新型复合材料开发有限公司 | A kind of continuous recurvation equipment of rolled metal composite strip |
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2014
- 2014-09-11 CN CN201410460274.9A patent/CN104259257B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0847721A (en) * | 1994-08-08 | 1996-02-20 | Nippon Light Metal Co Ltd | Method and device for manufacturing plate-shaped profile |
| EP1491270A1 (en) * | 2003-06-25 | 2004-12-29 | Kohler Maschinenbau GmbH | Leveling machine |
| CN1583303A (en) * | 2004-06-09 | 2005-02-23 | 沈阳工业大学 | Rolling method and apparatus for copper-aluminium double-face composite board |
| CN102397913A (en) * | 2011-11-15 | 2012-04-04 | 山东宏康机械制造有限公司 | Working roll adjusting device for roll leveler |
| CN204074831U (en) * | 2014-09-11 | 2015-01-07 | 云南昆钢新型复合材料开发有限公司 | A kind of continuous recurvation equipment of rolled metal composite strip |
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