CN106424424A - Cold bending metal keel and molding technological method thereof - Google Patents
Cold bending metal keel and molding technological method thereof Download PDFInfo
- Publication number
- CN106424424A CN106424424A CN201610928088.2A CN201610928088A CN106424424A CN 106424424 A CN106424424 A CN 106424424A CN 201610928088 A CN201610928088 A CN 201610928088A CN 106424424 A CN106424424 A CN 106424424A
- Authority
- CN
- China
- Prior art keywords
- pressure roller
- flanging
- flange
- main body
- clod wash
- 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.)
- Granted
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Classifications
-
- 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
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
- B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
Abstract
The invention relates to a cold bending metal keel and a molding technological method thereof and belongs to the technical field of metal structural parts. The metal keel comprises a purline main body with the section of a half-surrounded structure. The purline main body is provided with crimped holes distributed in the length direction at intervals. A surrounding ring is hooped to the periphery of a turnover edge of each crimped hole. The edge of each turnover edge is curled outwards to surround the corresponding surrounding ring. According to the cold bending metal keel and the molding technological method thereof, the surrounding rings are hooped outside the crimped holes, so that the contradiction that after the open hole section strength is weakened, the high-strength heightened curled edges need to obtained, the open holes and the curled edges are overhigh and prone to fracturing, and on the contrary, the strength and the rigidity are lowered is overcome. By adoption of the method, continuous and efficient production of high-strength purlines can be achieved, the rolling technology has the efficacy of gradual rolling, and therefore the problem of curled edge fracturing of the stamping technology can be avoided.
Description
Technical field
The present invention relates to a kind of shape, especially a kind of clod wash metal joist, also relates to its moulding process side
Method, belongs to hardware technical field.
Background technology
According to the applicant understood in structural steelwork, the structural member such as purlin and wall beam（Clod wash metal dragon is commonly referred in engineering
Bone）It is in semi-surrounding structure frequently with section（Such as C-shaped）Light gauge cold-formed steel shape.Such shaped steel is typically led to by cold bending thin wall steel plate
Purline machine clod wash roll-forming is crossed, and is intervally distributed with perforation along its length.In order to solve what cross-sectional strength after perforate weakened
Problem, perforation spaced apart on purlin makes flanging bore frequently with punching technology（Referring to Fig. 1, Fig. 2）.
Above-mentioned prior art be not only the possibility in punching generation type steel deformation, although and in theory flange height get over
High, intensity and rigidity are better, but actually piercing and flanging height more high easier cracking and deformation, strong so as to reduce purlin
Degree.With the continuous development of building industry, the intensity with Spaced perforations shaped steel, material wastage rate and standardization etc. are required to get over
Come higher, the shortcoming that above-mentioned prior art is present has been difficult to meet these requirements.
Content of the invention
It is an object of the invention to：For the shortcoming that above-mentioned prior art is present, propose one kind and can significantly improve intensity
With the clod wash metal joist of rigidity, while providing corresponding moulding technique, rapidly send out so as to meet conscientiously the industries such as building
The requirement of exhibition.
In order to reach object above, the clod wash metal joist of the present invention includes purlin main body of the section in semi-surrounding structure,
With flanged port spaced apart along its length in the purlin main body, it is characterised in that：The flange periphery of the flanged port
Hoop has enclosure, and outside the edge of the flange, volume surrounds enclosure.
The semi-surrounding structure in above-mentioned section can be C-shaped configuration, U-shaped structure or m shape structure.
The present invention is further improved, the rectangular cross-section of the enclosure, and the flange is towards the side of crimping in the hole
In arc-shaped.Or, the inner side in the enclosure section is in convex, the section of the flange corresponding position is in the concave arc for surrounding enclosure
Shape.
The moulding technique of clod wash metal joist of the present invention is at least comprised the following steps：
Step E, lasso are intervally distributed with the purlin main body of vertical flanging bore along its length and are placed on rollgang
It is sent into, the interior wide enclosure for being matched with the vertical flange gabarit of vertical flanging bore is enclosed within outside vertical flanging bore one by one；
Step F, flanging complete the purlin main body of lasso and continue to be sent on rollgang, through upper edge roller and with circle
Between the lower edge roller of the vertical flanging bore flanging punch of weekly interval distribution correspondence, volume outside the edge of vertical flange is made to surround enclosure.
As the present invention is in the outer shroud ring enclosure of flanged port, therefore solve after perforate cross-sectional strength weakens as obtaining high intensity
Increase the contradiction that crimping easy cracking too high with perforate and crimping reduces strength and stiffness on the contrary.Using the method for the present invention then not
The continuous high-efficient production of high-strength purlin can be only realized, and rolling technology has the work efficiency that progressively rolls, and therefore can avoid
The problem of Cracking of Sheet Metal Forming Technology crimping.
Description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of existing purlin.
Fig. 2 is the cross section structure schematic diagram of Fig. 1.
Fig. 3 is the purlin cross section structure schematic diagram of one embodiment of the invention.
Fig. 4 is strip metal sheet material punching step structural representation.
Fig. 5 is the flanging step structural representation after punching.
Fig. 6 is the curling step structural representation after flanging.
Fig. 7 is the flange step structural representation after crimping.
Fig. 8 is the lasso step structural representation after flange.
Fig. 9 is the flanging step structural representation after lasso.
Figure 10 is each process device structure schematic diagram for being connected into production line.
The purlin agent structure schematic diagram that Figure 11 is taken the shape of the letter U for section.
Purlin agent structure schematic diagram of the Figure 12 for section in m shape.
Specific embodiment
Embodiment one
The clod wash metal joist basic structure of the present embodiment is as shown in figure 3, have along length in the C-shaped purlin main body 1 in section
Direction flanging bore 2 spaced apart, 4 peripheral shroud of flange of flanging bore 2 has the enclosure 3 of rectangular cross-section, rolls up outside the edge of flange 4
Enclosure 3 is surrounded, which is in arc-shaped towards the side of flanging bore.
Its complete concrete moulding technique comprises the steps：
Step A, punching are placed on strip metal sheet material on rollgang and are sent into, through being distributed correspondence respectively with circumference
Kidney-shaped punch AT's and die AQ is in pairs upper between punch roll AH and lower punch roll AL, stamps out and spaced apart treats flange kidney-shaped
Bottom outlet 2-A, referring to Fig. 4.
Strip metal sheet material with kidney-shaped bottom outlet 2-A spaced apart is continued on rollgang by step B, flanging
Be sent into, by one group have the downside pressure roller BL of the upside pressure roller BH of two outer side pressure surface BW and one group with side pressure surface BN in two it
Between, tapered along feeding direction with respect to the spacing of side pressure surface, so as to by the gradually folding of strip metal sheet material both sides, form flanging 4-B,
Upside pressure roller BH and downside pressure roller BL can be distributed up and down in pairs, it is also possible to be dislocatedly distributed, referring to Fig. 5.
Strip metal sheet material after flanging is continued on rollgang to be sent into by step C, crimping, is had by one group
The upside pressure roller CH of two outer lateral part surface CW and outer rolling circle CG and one group have in two between the downside pressure roller CL of lateral part surface CN, on
Side pressure roller CH and downside pressure roller CL are distributed in pairs, and the cylindrical and downside pressure roller CL's of outer rolling circle CG of upside pressure roller CH is cylindrical in pairs
Rolling cut, the outer rolling circle CG outside diameter of upside pressure roller CH is sent into along the outside diameter edge of feeding direction flaring downside pressure roller CL
Direction is tapered, so as to gradually wind the strip metal sheet material both sides flanging A-B edge after flanging, is formed with crimping 4-C's
The integrally C-shaped purlin main body in section, referring to Fig. 6.
Purlin main body is continued on rollgang to be sent into by step D, flange, through being distributed correspondence respectively with circumference
Kidney-shaped depression mould DQ and step punch DT paired upper overturning roller DH and lower flange roller DL between, the step head of step punch DT with
Flange gap is left between depression mould DQ, so as to vertical flange mounting hole 2-D spaced apart is squeezed out, referring to Fig. 7.
Step E, lasso are intervally distributed with the C-shaped section purlin master of vertical flange mounting hole 2-D along its length
Body 1 continues on rollgang to be sent into, by the interior wide square-section for matching with the vertical flange gabarit of vertical flange mounting hole 2-D
Enclosure 3 is enclosed within one by one outside vertical flange mounting hole, referring to Fig. 8.
The purlin main body 1 for completing lasso is continued to be sent on rollgang by step F, flanging, through paired upper
Between edge roller FH and lower edge roller FL with the vertical flange mounting hole 2-D flanging punch FT of circumferentially-spaced correspondence, make
Outside the edge of vertical flange, volume surrounds enclosure 3, shapes flanged port 2, and as the termination of flanging punch FT has circular arc chamfering,
Therefore flange is in arc-shaped towards the side of crimping in the hole, referring to Fig. 9.
As process above step is realized by the corresponding rolling equipment being sent on roller-way respectively, therefore can be as Figure 10 institute
Show series connection for production line, each processing step is completed on the equipment for be connected into production line, so as to greatly improve production efficiency.
Following table is the clod wash metal joist physical and mechanical property indexs of the present embodiment that test draws, all carries than original technology
High by more than 30%.
The structure of the present embodiment is due to having enclosure in the outer shroud ring of flanging bore, and therefore need not increasing flange, to be remarkably improved purlin strong
Degree and implosion test show, intensity and rigidity improve 30% and 50% than prior art respectively, have properly settled high for obtaining
Intensity increases flange easily cracking high with flange and drops low intensive contradiction on the contrary.Then not only can be real using the method for the present embodiment
The continuous high-efficient production of existing high-strength purlin, and rolling technology has the work efficiency that progressively rolls, and is thus advantageous to avoid cracking.Especially
It is for enclosure section inner side in convex, the section of flange corresponding position in surrounding the arcs of recesses structure of enclosure, during flanging
Corresponding flanging punch there is corresponding arc-shaped transition angle, the outer volume of the smooth calendering in edge for being therefore more beneficial for vertical flange is surrounded
Enclosure, it is to avoid cracking.
Section shown in Figure 11, Figure 12 takes the shape of the letter U purlin agent structure with m shape and moulding technique respectively according to above-mentioned reality
Apply example to be not difficult to deduce, therefore not elsewhere specified (NES).
In addition to the implementation, the present invention can also have other embodiment.All employing equivalents or equivalent transformation shape
The technical scheme for becoming, all falls within the protection domain of application claims.
Claims (9)
1. a kind of clod wash metal joist, is in the purlin main body of semi-surrounding structure including section, it is characterised in that：The purlin main body
Upper have flanged port spaced apart along its length, and the flange peripheral shroud of the flanged port has enclosure, the edge of the flange
Outer volume surrounds enclosure.
2. clod wash metal joist according to claim 1, it is characterised in that：The rectangular cross-section of the enclosure, described turns over
While the side towards crimping in the hole is in arc-shaped.
3. clod wash metal joist according to claim 1, it is characterised in that：The inner side in the enclosure section is in convex,
The section of the flange corresponding position is in the arcs of recesses for surrounding enclosure.
4. clod wash metal joist according to claim 1, it is characterised in that：The semi-surrounding structure is C-shaped configuration, U-shaped
Structure or m shape structure.
5. according to claim 1,2 or 3 clod wash metal joist moulding technique, it is characterised in that including following step
Suddenly：
Step E, lasso are intervally distributed with the purlin main body of vertical flanging bore along its length and are placed on rollgang
It is sent into, the interior wide enclosure for being matched with the vertical flange gabarit of vertical flanging bore is enclosed within outside vertical flanging bore one by one；
Step F, flanging will complete the purlin main body of lasso and continue to be sent on rollgang, through upper edge roller and have
Circumferentially-spaced is corresponded between the lower edge roller of vertical flanging bore flanging punch, surrounds volume outside the edge of vertical flange
Circle.
6. clod wash metal joist moulding technique according to claim 5, it is characterised in that：The semi-surrounding structure is
C-shaped configuration, also has before step E
Step A, punching are placed on strip metal sheet material on rollgang and are sent into, through being distributed correspondence respectively with circumference
Punch and die upper in pairs between punch roll and lower punch roll, stamp out and spaced apart treat flange bottom outlet；
Strip metal sheet material with bottom outlet spaced apart is continued on rollgang to be sent into by step B, flanging, by one
Upside pressure roller and one group of the group with two outer side pressure surfaces have in two between the downside pressure roller of side pressure surface, with respect to the spacing of side pressure surface
Tapered along feeding direction, the gradually folding of strip metal sheet material both sides forms flanging；
Strip metal sheet material after flanging is continued on rollgang to be sent into by step C, crimping, is had outside two by one group
The upside pressure roller of lateral part surface and outer rolling circle and one group have in two between the downside pressure roller of lateral part surface, the upside pressure roller and under
Side pressure roller is distributed in pairs, in pairs the cylindrical rolling cut of the cylindrical and downside pressure roller of outer rolling circle of upside pressure roller, the upside pressure roller
Outer rolling circle outside diameter is tapered along feeding direction along the outside diameter of feeding direction flaring downside pressure roller, by the bar after flanging
Shape sheet metal both sides hemmed edges gradually wind, the integrally C-shaped purlin main body in section of the formation with crimping；
Purlin main body is continued on rollgang to be sent into by step D, flange, through being distributed corresponding kidney-shaped respectively with circumference
Between the paired upper overturning roller and lower flange roller of depression mould and step punch, between the step head of the step punch and depression mould
Flange gap is left, squeezes out vertical flanging bore spaced apart.
7. clod wash metal joist moulding technique according to claim 6, it is characterised in that：Upper in step B
Side pressure roller and downside pressure roller are distributed in pairs up and down or are dislocatedly distributed.
8. clod wash metal joist moulding technique according to claim 7, it is characterised in that：The flanging of step F
Punch termination has circular arc chamfering.
9. clod wash metal joist moulding technique according to claim 8, it is characterised in that：Each processing step is in series connection
Become on the equipment of production line and complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928088.2A CN106424424B (en) | 2016-10-31 | 2016-10-31 | A kind of clod wash metal joist and its moulding technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928088.2A CN106424424B (en) | 2016-10-31 | 2016-10-31 | A kind of clod wash metal joist and its moulding technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106424424A true CN106424424A (en) | 2017-02-22 |
| CN106424424B CN106424424B (en) | 2019-05-21 |
Family
ID=58177223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610928088.2A Active CN106424424B (en) | 2016-10-31 | 2016-10-31 | A kind of clod wash metal joist and its moulding technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106424424B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1943104A1 (en) * | 1969-08-25 | 1971-03-04 | Whistler Green Engineering Pro | Metal cutting and stamping machine |
| CN201923814U (en) * | 2010-12-25 | 2011-08-10 | 大力机械（宁国）有限公司 | Riveting structure for reinforcing gaskets of jack |
| CN102728707A (en) * | 2012-07-10 | 2012-10-17 | 北方工业大学 | Roll bending forming method and device for variable cross-section hat-shaped section |
| CN203008228U (en) * | 2012-12-30 | 2013-06-19 | 杭州伟都钢构有限公司 | C-shaped steel purline |
| CN203197069U (en) * | 2013-04-07 | 2013-09-18 | 鹤山天山金属材料制品有限公司 | Automatic molding mechanism for stamping profiles by using rollers |
| CN203526962U (en) * | 2013-11-08 | 2014-04-09 | 武汉宇宙科技有限公司 | Main keel cold roll forming machine |
| CN206122576U (en) * | 2016-10-31 | 2017-04-26 | 南京善围建筑科技有限公司 | Clod wash metal fossil fragments |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1943104U (en) * | 1966-02-25 | 1966-07-28 | Alfred Gruchenberg | SWITCH FOR PUBLIC TRAFFIC. |
-
2016
- 2016-10-31 CN CN201610928088.2A patent/CN106424424B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1943104A1 (en) * | 1969-08-25 | 1971-03-04 | Whistler Green Engineering Pro | Metal cutting and stamping machine |
| CN201923814U (en) * | 2010-12-25 | 2011-08-10 | 大力机械（宁国）有限公司 | Riveting structure for reinforcing gaskets of jack |
| CN102728707A (en) * | 2012-07-10 | 2012-10-17 | 北方工业大学 | Roll bending forming method and device for variable cross-section hat-shaped section |
| CN203008228U (en) * | 2012-12-30 | 2013-06-19 | 杭州伟都钢构有限公司 | C-shaped steel purline |
| CN203197069U (en) * | 2013-04-07 | 2013-09-18 | 鹤山天山金属材料制品有限公司 | Automatic molding mechanism for stamping profiles by using rollers |
| CN203526962U (en) * | 2013-11-08 | 2014-04-09 | 武汉宇宙科技有限公司 | Main keel cold roll forming machine |
| CN206122576U (en) * | 2016-10-31 | 2017-04-26 | 南京善围建筑科技有限公司 | Clod wash metal fossil fragments |
Non-Patent Citations (1)
| Title |
|---|
| 乔治.T哈莫斯: "《高生产率的辊弯成型》", 31 October 1991, 中国钢协冷弯型钢协会，武汉钢铁设计研究院 * |
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| Publication number | Publication date |
|---|---|
| CN106424424B (en) | 2019-05-21 |
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Effective date of registration: 20211117 Address after: 210000 Dongshan science and Technology Innovation Park, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Jiangsu Jingfeng Investment Holding Group Co.,Ltd. Address before: 211100 Building 8, Jingfeng smart Industrial Park, No. 98, Jiangning District, Nanjing, Jiangsu Patentee before: NANJING SHANWEI BUILDING TECHNOLOGY CO.,LTD. |
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