CN106424264B - A kind of design technology producing folded side profile - Google Patents
A kind of design technology producing folded side profile Download PDFInfo
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- CN106424264B CN106424264B CN201610893558.6A CN201610893558A CN106424264B CN 106424264 B CN106424264 B CN 106424264B CN 201610893558 A CN201610893558 A CN 201610893558A CN 106424264 B CN106424264 B CN 106424264B
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- strip
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
- B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
- B21D19/043—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of design technologies for producing folded side profile, pass through the rolling of up-down rollers, it realizes and carries out bending deformation by scheduled angle in the pass inner profile of every a time roll, the fillet numerical value of profile is increased in deformation process, profile is kept to have a big fillet before last folded edge forming, and profile both sides complete to flatten filleted corner after the completion of rolling close to parallel rolling.Deform internal stress just basic release completion when road second from the bottom of fillet, the side of Rouno Cormer Pregrinding Wheel is compensated to the two sides of small round corner eventually by the compensation of material, the phenomenon that not influence dimensional accuracy, also can effectively solve edge warpage, be a kind of process modification of maturation.
Description
Technical field
The invention discloses a kind of techniques for producing folded side profile.
Background technique
In the cold-forming shapes of opening, due to the case where using needs, being frequently encountered folded side, as shown in Figure 1.Previous
When designing this profile, the phenomenon that edge warpage can all be had by finally rolling out the profile come, as shown in Fig. 2, his molding work
Skill is completed as shown in figure 3, being gradually curved from 0 ° to folding, because not having the angle R inside the profile after folding, is entirely being become
The angle R all very littles during shape, the back that the completion of most critical folds, substantially without interior angle, in this way edge is complete
After folding, due to the effect of external force inside roll, both sides gather into folds, due to two straight flanges in deformation process it is all in
Stress all concentrates on fillet position, since fillet is small, so internal stress is completed with regard to opposite increase until rolling, after cutting,
Internal stress is released, and caused result is exactly edge warpage, and how to solve this technical problem, is all one all the time
Technical problem.
Summary of the invention
In order to solve the technical problems existing in the prior art, the invention discloses a kind of techniques for producing folded side profile.
The technical solution adopted by the invention is as follows:
A kind of technique producing folded side profile realizes the pass inner mold in every a time roll by the rolling of up-down rollers
Material carries out bending deformation by scheduled angle, and the fillet numerical value of profile is increased in deformation process, before last folded edge forming
Profile is kept to have a big fillet, and profile both sides are completed close to parallel rolling, filleted corner pressure after the completion of rolling
It is flat.
Further, the numerical value of the angle of bending deformation and fillet is carried out according to the actual (real) thickness of strip and material
Adjustment, have reached optimal molding effect.
Further, when profile is the strip of thickness 1.0mm, the described shape bending deformation complete the sequence of angle according to
Secondary is 40 °, 80 °, 110 °, 140 °, 170 °, 180 °；Every corresponding fillet numerical value of a time be R4.8, R2.8, R2.2, R1.9,
R1.7,R1.6；It completes on folded side.Original process such as keep identical deformation angle, corresponding fillet numerical value be R2.8, R1.6,
R1.3、R1.1、R1.0、R1.0。
The operation of rolling of fashioned iron is as described below under new process, by taking steel strip thickness 1.0mm as an example:
Two rollers flatten strip all using facing directly step 1. up and down, prepare for further angular distortion, and provide
Strip enters the initial driving force of equipment；
Step 2. carries out the deformation of the first bent angle in the position of strip both ends 30mm inward, by the cooperation of top and bottom rolls,
Strip both ends are turned up to 40 ° of angle, while the angle R of upper roller corner is designed as R3.8, such strip bull nose is shaped to
R4.8
Step 3. carries out the deformation of the second bent angle in the same position of upper a time bent angle, by the cooperation of top and bottom rolls,
Strip both ends are turned up to 80 ° of angle, while the angle R of upper roller corner is designed as R1.8, such strip bull nose is
R2.8
Step 4. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller, will by the outside of extruding strip
Angle becomes 110 ° from 80 °, is shaped to R2.2 naturally at strip bending bull nose
Step 5. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller, will by the outside of extruding strip
Angle becomes 140 ° from 110 °, is shaped to R1.9 naturally at strip bending bull nose
Step 6. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller, will by the outside of extruding strip
Angle becomes 170 ° from 140 °, is shaped to R1.7 naturally at strip bending bull nose
Step 7. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller, will by the outside of extruding strip
Angle becomes 180 ° from 170 °, is shaped to R1.6 naturally at strip bending bull nose, at this point, strip to be to complete 180 ° of deformation,
Only there are the parallel clearances of 1.2mm between folded side up and down
Upper and lower two plain-barreled roll of step 8., by there are the parallel strips of the two of the gap 1.2mm to be compacted, due to deformation at such fillet
The internal stress generated in the process can be near minimum, would not occur the phenomenon that edge warpage again after compacting.
Further, when profile uses the straight carbon steel band of 2.5mm thickness, the sequence for completing angle is successively 30 °, 60 °,
80°,100°,120°,140°,160°,170°,180°；Every corresponding fillet numerical value of a time be R11.4, R6.6, R5.4,
R4.7,R4.2,R3.9,R3.7,R3.55,R3.5；It completes on folded side.
Beneficial effects of the present invention:
The present invention is by the internal stress at fillet during Reducing distortion, so that the phenomenon that folded side warpage is addressed, passes through
Prolonged debugging and production are crossed, this problem is solved using new technique, fillet is exactly increased in deformation process, so
Profile is kept to have a big fillet before last molding afterwards, and close to parallel rolling, then finally both sides are completed
As soon as step flattens filleted corner, the internal stress for deforming fillet discharges completion substantially when road second from the bottom, eventually by material
The compensation of material compensates on the side of Rouno Cormer Pregrinding Wheel to the two sides of small round corner, to not influence dimensional accuracy, also can effectively solve edge
The phenomenon that warpage is a kind of process modification of maturation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
The structure chart of the cold-forming shapes of Fig. 1 opening；
There is the structure chart of warpage in Fig. 2 edge；
The flow chart of Fig. 3 original processing technique；
The flow chart of Fig. 4 processing technology of the present invention.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing:
The technique disclosed by the invention for producing folded side profile is realized by the rolling of up-down rollers in every a time roll
Pass inner profile carries out bending deformation by scheduled angle, and the fillet numerical value of profile is increased in deformation process, on last folded side
Profile is kept to have a big fillet before molding, and profile both sides are completed close to parallel rolling, handle after the completion of rolling
Filleted corner flattens.
Embodiment 1
A kind of technique producing folded side profile realizes the band in the pass of every a time roll by the rolling of up-down rollers
Steel carries out bending deformation by scheduled angle, produces the straight carbon steel of 1.0mm thickness, the sequence for completing angle is successively 40 °, 80 °,
110°,140°,170°,180°；Every corresponding fillet numerical value of a time is R4.8, R2.8, R2.2, R1.9, R1.7, R1.6；It is folded
It completes on side；Specific steps are as follows:
Two rollers flatten strip all using facing directly step 1. up and down, prepare for further angular distortion, and provide
Strip enters the initial driving force of equipment；
Step 2. carries out the deformation of the first bent angle in the position of strip both ends 30mm inward, by the cooperation of top and bottom rolls,
Strip both ends are turned up to 40 ° of angle, while the angle R of upper roller corner is designed as R3.8, such strip bull nose is shaped to
R4.8
Step 3. carries out the deformation of the second bent angle in the same position of upper a time bent angle, by the cooperation of top and bottom rolls,
Strip both ends are turned up to 80 ° of angle, while the angle R of upper roller corner is designed as R1.8, such strip bull nose is
R2.8
Step 4. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller, will by the outside of extruding strip
Angle becomes 110 ° from 80 °, is shaped to R2.2 naturally at strip bending bull nose；
Step 5. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller, will by the outside of extruding strip
Angle becomes 140 ° from 110 °, is shaped to R1.9 naturally at strip bending bull nose；
Step 6. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller, will by the outside of extruding strip
Angle becomes 170 ° from 140 °, is shaped to R1.7 naturally at strip bending bull nose；
Step 7. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller, will by the outside of extruding strip
Angle becomes 180 ° from 170 °, is shaped to R1.6 naturally at strip bending bull nose, at this point, strip to be to complete 180 ° of deformation,
Only there are the parallel clearances of 1.2mm between folded side up and down；
Upper and lower two plain-barreled roll of step 8., by there are the parallel strips of the two of the gap 1.2mm to be compacted, due to deformation at such fillet
The internal stress generated in the process can be near minimum, would not occur the phenomenon that edge warpage again after compacting.
Embodiment 2
The straight carbon steel for producing 2.5mm thickness, the sequence for completing angle is successively 30 °, 60 °, 80 °, 100 °, 120 °, 140 °,
160°,170°,180°；Every corresponding fillet numerical value of a time be R11.4, R6.6, R5.4, R4.7, R4.2, R3.9, R3.7,
R3.55,R3.5；It completes on folded side.
Specific implementation steps can be with the specific steps in reference implementation example 1.
Foregoing merely illustrates two specific embodiments, the angle of specific bending deformation and the numerical value of fillet are to need
It to be adjusted according to the actual (real) thickness of strip and material, have reached optimal molding effect.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (2)
1. a kind of design technology for producing folded side profile, which is characterized in that by the rolling of up-down rollers, realization is rolled in every a time
Strip carries out bending deformation by scheduled angle in the pass of roller, the fillet numerical value of strip is increased in deformation process, last
Strip is kept to have a big fillet before folded edge forming, and strip both sides are completed close to parallel rolling, rolling is completed
Filleted corner is flattened afterwards, side is folded and completes；The steel strip thickness is 1.0mm, the scheduled angle is successively 40 °, 80 °, 110 °,
140°,170°,180°；Every corresponding bull nose numerical value of a time is R4.8, R2.8, R2.2, R1.9, R1.7, R1.6.
2. the design technology as described in claim 1 for producing folded side profile, which is characterized in that specific step is as follows:
Two rollers flatten strip all using facing directly step 1. up and down；
Step 2. strip both ends inward 30mm position carry out the first bent angle deformation, by the cooperation of top and bottom rolls, by band
40 ° of angle is turned up at steel both ends, while the angle R of upper roller corner is designed as R3.8, and such strip bull nose is shaped to R4.8；
Step 3. carries out the deformation of the second bent angle in the same position of upper a time bent angle, by the cooperation of top and bottom rolls, by band
80 ° of angle is turned up at steel both ends, while the angle R of upper roller corner is designed as R1.8, and such strip bull nose is shaped to R2.8；
Step 4. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller passes through the outside for squeezing strip, by angle
Become 110 ° from 80 °, is shaped to R2.2 naturally at strip bending bull nose；
Step 5. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller passes through the outside for squeezing strip, by angle
Become 140 ° from 110 °, is shaped to R1.9 naturally at strip bending bull nose；
Step 6. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller passes through the outside for squeezing strip, by angle
Become 170 ° from 140 °, is shaped to R1.7 naturally at strip bending bull nose；
Step 7. continues to deform steel edge portion by the pushing on upper roller inclined-plane, and upper roller passes through the outside for squeezing strip, by angle
Become 180 ° from 170 °, R1.6 is shaped to naturally at strip bending bull nose, at this point, 180 ° of deformation is completed in strip, only
There are the parallel clearances of 1.2mm between folded side up and down；
Upper and lower two plain-barreled roll of step 8., by there are the folded side compactings in parallel of the two of the gap 1.2mm.
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| CN201610893558.6A CN106424264B (en) | 2016-10-13 | 2016-10-13 | A kind of design technology producing folded side profile |
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| CN201610893558.6A CN106424264B (en) | 2016-10-13 | 2016-10-13 | A kind of design technology producing folded side profile |
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| CN106944505B (en) * | 2017-04-14 | 2018-07-13 | 江苏帝尔保机械有限公司 | A kind of rolling die group and its production method for producing shape tube |
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| JP3623474B2 (en) * | 2001-10-31 | 2005-02-23 | トライエンジニアリング株式会社 | Hemming apparatus and hemming method |
| CN1242858C (en) * | 2003-09-29 | 2006-02-22 | 上海宝钢建筑工程设计研究院 | Fixed roll radian-change bending-point position cold-bending shaping process |
| DE102007005590A1 (en) * | 2007-02-05 | 2008-08-07 | Behr Gmbh & Co. Kg | Forming process and forming device |
| CN101130956B (en) * | 2007-08-03 | 2010-06-09 | 攀钢集团攀枝花钢铁研究院 | Manufacturing technique of cold-bending steel sheet pile |
| CN101954399B (en) * | 2010-05-31 | 2012-07-18 | 南京万汇新材料科技有限公司 | Straight-angle corner pile continuous rolling type cold-bending forming method |
| CN101956389B (en) * | 2010-05-31 | 2011-05-25 | 南京万汇钢板桩有限公司 | Omega-shaped corner pile and continuous roll type cold bending formation method thereof |
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| CB02 | Change of applicant information |
Address after: 250119 Huatai Road, Ji'nan new material industrial park, Tianqiao District, Ji'nan, Shandong 307 Applicant after: Shandong Hong Man metal forming Polytron Technologies Inc Address before: 250032 Shandong medicine Ji'nan Tianqiao District drug Mountain Office West adjacent North and South Road No. 1 Applicant before: Shandong Hong Min roller mold Co., Ltd |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191030 Address after: 1-401, East R & D building, 307 Huatai Road, new material industrial park, Tianqiao District, Jinan City, Shandong Province Patentee after: Shandong huashunda cold bend Technology Co., Ltd Address before: 250119 Huatai Road, Ji'nan new material industrial park, Tianqiao District, Ji'nan, Shandong 307 Patentee before: Shandong Hong Man metal forming Polytron Technologies Inc |
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| TR01 | Transfer of patent right |