CN1600472A - Method for straightening hot rolled reinforcing steel bar having ribs and deflecting roller - Google Patents
Method for straightening hot rolled reinforcing steel bar having ribs and deflecting roller Download PDFInfo
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- CN1600472A CN1600472A CN 03124865 CN03124865A CN1600472A CN 1600472 A CN1600472 A CN 1600472A CN 03124865 CN03124865 CN 03124865 CN 03124865 A CN03124865 A CN 03124865A CN 1600472 A CN1600472 A CN 1600472A
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- roller
- guide roller
- aligning
- reinforcing bar
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Abstract
A method for straightening the hot-rolled ribbed reinforcing steel bar by-two guide rollers features that said guide roller has a diameter which is at least 4 times greater than that of the ribbed inforcing bar to be straightened and the shape of its working part, which is similar to that of rib. The guide roller is composed of splitted roller body with an adjustable gap and the roller holder.
Description
Technical field
The present invention relates to a kind of method for aligning and device of wire rod, particularly a kind of hot rolled ribbed bar straightening method and guide roller.
Background technology
Since the Ministry of Construction, Ministry of Metallurgical Industry have united nineteen ninety-five since the emphasis of issuing the documents applies hot rolled ribbed steel bar (the particularly new III grade reinforcing steel of 400Mpa), hot rolled ribbed steel bar is coiled the vertical rib distortion in uncoiling aligning back, the problem of longitudinal and transverse rib major injury has become building industry and metallurgical industry a great problem, though this difficult problem is not resolved through the several years effort of numerous producer always.
Hot rolled ribbed steel bar is the cross rib that has of a kind of existing common reinforcing bar, again the wire rod of the vertical rib of two projection symmetries is arranged, it is after the roll pressed shaping of axially being rotated along rod iron under 900 ℃ of high temperature, linearlyly go out roll and enter rotating spirality " spinneret ", draw along this pipe and to enclose in the shape of a spiral that shape advances, when changing into screw by rectilinear motion, do reversing of 360 ° on every circle towards a direction, the cooling afterboarding is that hot rolled ribbed steel bar is coiled.Relevant producer adopted several different methods when this reinforcing bar of aligning: will coiling by traditional method of having is placed on the rotating disk, send into rotation frame straightening mechanism after surrounding edge launches and align along coiling, because this method of deploying has kept original the reversing of reinforcing bar, and smoothing roll or aligning piece are done spiral rolling at rebar surface, so the vertical rib in aligning back reverses, longitudinal and transverse rib damage is serious; What have will coil along after the axial expansion of its every circle, sending into fixedly the posture straightening mechanism through the guiding haulage gear aligns, this method of deploying is equivalent to be changed into by rectilinear motion from the reinforcing bar that roll comes out the inverse process of screw, smoothing roll rolls along the reinforcing bar direction of motion at rebar surface, so avoided the damage of longitudinal and transverse rib to a certain extent.But because reinforcing bar is done reversing of 360 ° on every circle towards a direction when changing into screw by rectilinear motion in course of hot rolling, be shaped to every circle when making cooling and reversed 360 ° coiling when according to said method launching, reinforcing bar is except that also existing bigger distorting stress simultaneously, so still there is following deficiency common bending stress:
1, because when design and making guide roller, only consider the mechanical strength of parts in guide roller and the roller, and serve as according to determining the diameter of guide roller: generally when the reinforcing bar of aligning Φ 6-10 millimeter, serve as that to adopt diameter be 100 millimeters guide roller to foundation just with the required mechanical strength of aligning 10 millimeters reinforcing bars of Φ with its mechanical strength; When the reinforcing bar of aligning Φ 10-16 millimeter, serve as to be 150 millimeters guide roller just according to adopting diameter with the required mechanical strength of aligning 16 millimeters reinforcing bars of Φ.The external diameter that is guide roller is generally about 10 times that are aligned bar diameter.Because the external diameter of guide roller is smaller, it is more bent that the curved surface of its working portion just is tending towards, just short with the contact length of vertical rib, contact area is just little, when the steel longitudinal rib of constantly advancing and having a distorting stress by rotating guide roller to reinforcing bar apply bigger anti-torsion with overcome its distorting stress, when correcting its twist, the guide roller working face can cut away indulging rib the horizontal shear force that short vertical rib applies once in a while at reinforcing bar two vertical rib roots.As long as there is one section vertical rib to be cut off, reinforcing bar just can't utilize the vertical rib of himself to advance in all rollers of guide roller and follow-up work step according to the straight path of setting, and can in all rollers of guide roller and follow-up work step, rotate while advancing, and cause the vertical rib of reinforcing bar to twist, longitudinal and transverse rib major injury;
2. because guide roller only applies clamping force to the vertical rib root basic circle of reinforcing bar, damage rebar surface when the clamping force that applies is big easily, the clamping force that applies hour can't clamp reinforcing bar again, exist the reinforcing bar of distorting stress still can in all rollers of guide roller and follow-up work step, rotate, can't apply anti-torsion to reinforcing bar by guide roller its elimination is reversed while advancing;
3,, must preparation work partial shape size different many during the reinforcing bar of aligning plurality of specifications to guide roller because guide roller is an overall structure, and a kind of geomery of guide roller working portion of specification only is applicable to a kind of reinforcing bar of specification; And after local damage appears in the guide roller working portion, must change whole guide roller, thereby influence the quality of production, reduce production efficiency, improve production cost.
Summary of the invention
One of purpose of the present invention provides a kind of hot rolled ribbed bar straightening method.
The technical scheme that realizes above-mentioned purpose of the present invention is: when the aligning reinforcing bar, utilize the vertical rib of reinforcing bar self that reinforcing bar is led, steel longitudinal rib is advanced in all rollers of guide roller and follow-up work step according to the straight path of setting.
The further technical scheme of the present invention is: at aligning during reinforcing bar, by guide roller the both ends of two sides, root basic circle and the cross rib of steel longitudinal rib are imposed clamping force enough, that it can not be rotated while advancing between guide roller.
Two of the object of the invention provides a kind of guide roller that utilizes its vertical rib guiding when the aligning reinforcing bar.
The technical scheme that realizes above-mentioned purpose of the present invention is: the external diameter of guide roller is at least 14 times by the aligning bar diameter.
The further technical scheme of the present invention is: the external diameter of guide roller is 15-150 times by the aligning bar diameter.
The present invention further technical scheme is: the external diameter of guide roller is 20-80 times by the aligning bar diameter.
The working portion of guide roller is the contacted shape in both ends with two sides, root basic circle and the cross rib of steel longitudinal rib.
Guide roller be split, can regulate two roll bodies in gap between the two by governor motion.
Roll body comprises roller sheet and roller plate base, and roller sheet and roller plate base can be splits.
The roller sheet can be inserted by several and form.
The present invention compares with background technology owing to adopt as above technical scheme, has following beneficial effect:
1, when the aligning reinforcing bar, the present invention is owing to scientifically utilized the vertical rib of reinforcing bar self that reinforcing bar is led, simultaneously, by guide roller the both ends of two sides, root basic circle and the cross rib of steel longitudinal rib are imposed enough clamping forces, it can not be rotated while advancing between guide roller, steel longitudinal rib is advanced in all rollers of guide roller and follow-up work step according to the straight path of setting, can be the reinforcing bar guiding continuously, to guarantee to align out qualified reinforcing bar;
2, because the guide roller external diameter is bigger, and its working portion curved surface is tending towards more straight, just long with the contact length of vertical rib, promptly the contact area at the both ends of the two sides of working portion curved surface and steel longitudinal rib, root basic circle and cross rib is just big.When guide roller by vertical rib to reinforcing bar apply anti-torsion with overcome its torsion, when correcting its twist, because two guide roller working faces are to act on one section both ends of two sides, root basic circle and the cross rib of long steel longitudinal rib, so this section steel longitudinal rib can be born from the torsion of guide roller and can not be cut off, can be the reinforcing bar guiding continuously, and steel longitudinal rib is advanced in all rollers of guide roller and follow-up work step according to the straight path of setting, to guarantee to align out qualified reinforcing bar;
3, owing to the guide roller while contacts with the both ends of two sides, root basic circle and the cross rib of steel longitudinal rib, and it is imposed enough clamping forces, by guide roller reinforcing bar being applied anti-torsion reverses its elimination, make steel longitudinal rib in all rollers of guide roller and follow-up work step, advance according to the straight path of setting, so avoided vertical rib distortion, longitudinal and transverse rib damage;
4, because guide roller of the present invention is two roll bodies of split, be provided with the governor motion of adjustable clearance between two roll bodies, so guide roller of the present invention is applicable to the reinforcing bar of plurality of specifications; Each roll body comprises the roller sheet and the roller plate base of split again, and the roller sheet is inserted by several and formed, thus guide roller working portion of the present invention occur only needing to change corresponding inserting after the local damage, thereby guarantee the quality of production, enhance productivity, reduce production costs.
Description of drawings
Accompanying drawing 1 is the contact situation schematic diagram of guide roller working portion of the present invention with vertical rib;
Accompanying drawing 2 is the contact situation schematic diagram of existing guide roller working portion with vertical rib;
Accompanying drawing 3 is the contact situation schematic diagram of guide roller working portion of the present invention with reinforcing bar;
Accompanying drawing 4,5 is the schematic diagram of the guide roller of adjustable clearance of the present invention;
Accompanying drawing 6 is the structural representation of guide roller roll body of the present invention.
Below in conjunction with drawings and Examples detail content of the present invention is further described.
The specific embodiment
Embodiment one: when the hot rolled ribbed steel bar of 10 millimeters of aligning Φ, the external diameter of guide roller 1 of the present invention is 200 millimeters, its external diameter is by 20 times (as shown in Figure 1) of aligning bar diameter, external diameter than existing guide roller 3 is twice (as shown in Figure 2), and the external diameter of existing guide roller 3 is 100 millimeters of Φ, and its external diameter only is 10 times by the aligning bar diameter.
When the vertical rib 2 of the hot rolled ribbed steel bar that constantly advances enters in the rotating a pair of guide roller 1 of the present invention, because the external diameter of guide roller 1 of the present invention is obviously greater than existing guide roller 3, they also have marked difference with the situation that contacts of steel longitudinal rib 2, the contact length of the working portion of guide roller 1 of the present invention and steel longitudinal rib 2 is longer than the contact length of the working portion of existing guide roller 3 and steel longitudinal rib 2, thereby significantly improved two vertical ribs to overcome the ability to bear of reinforcing bar torsion (laterally shear force) from guide roller 1 of the present invention, made guide roller 1 of the present invention can be competent at task for steel longitudinal rib 2 continuous steerables.
The roll body 4 of guide roller 1 of the present invention comprises the roller sheet and the roller plate base 8 of split, and the roller sheet is inserted by three and 9 formed (as shown in Figure 6), and inserting when a certain on the guide roller 1 of the present invention 9 only needs to change corresponding inserting after local damage occurring and 9 get final product.
Embodiment two: when the hot rolled ribbed steel bar of aligning Φ 6-14 millimeter, the external diameter of guide roller 1 of the present invention is designed to 420 millimeters, that is: when the hot rolled ribbed steel bar of 6 millimeters of aligning Φ, the external diameter of guide roller 1 of the present invention is 70 times by the aligning bar diameter; When the hot rolled ribbed steel bar of 14 millimeters of aligning Φ, the external diameter of guide roller 1 of the present invention is 30 times by the aligning bar diameter.
Embodiment three: when the hot rolled ribbed steel bar of aligning Φ 6-14 millimeter, the external diameter of guide roller 1 of the present invention is designed to 210 millimeters, that is: when the hot rolled ribbed steel bar of 6 millimeters of aligning Φ, the external diameter of guide roller 1 of the present invention is 35 times by the aligning bar diameter; When the hot rolled ribbed steel bar of 14 millimeters of aligning Φ, the external diameter of guide roller 1 of the present invention is 15 times by the aligning bar diameter.
Embodiment four: when the hot rolled ribbed steel bar of aligning Φ 6-14 millimeter, the external diameter of guide roller 1 of the present invention is designed to 840 millimeters, that is: when the hot rolled ribbed steel bar of 6 millimeters of aligning Φ, the external diameter of guide roller 1 of the present invention is 140 times by the aligning bar diameter; When the hot rolled ribbed steel bar of 14 millimeters of aligning Φ, the external diameter of guide roller 1 of the present invention is 60 times by the aligning bar diameter.
Claims (15)
1, a kind of hot rolled ribbed bar straightening method is characterized in that: when the aligning reinforcing bar, utilize the vertical rib of reinforcing bar self that reinforcing bar is led, steel longitudinal rib is advanced in all rollers of guide roller and follow-up work step according to the straight path of setting.
2, hot rolled ribbed bar straightening method according to claim 1, it is characterized in that: at aligning during reinforcing bar, the both ends of two sides, root basic circle and the cross rib of steel longitudinal rib are imposed clamping force enough, that it can not be rotated while advancing between guide roller by guide roller.
3, a kind of guide roller that utilizes its vertical rib guiding when the aligning reinforcing bar is characterized in that its external diameter is at least 14 times by the aligning bar diameter.
4, guide roller according to claim 3 is characterized in that its external diameter is 15-150 times by the aligning bar diameter.
5, guide roller according to claim 4 is characterized in that its external diameter is 20-80 times by the aligning bar diameter.
6, according to claim 3 or 4 or 5 described guide rollers, it is characterized in that its working portion for the contacted shape in both ends of two sides, root basic circle and the cross rib of steel longitudinal rib.
7, according to claim 3 or 4 or 5 described guide rollers, it is characterized in that guide roller be split, can regulate two roll bodies in gap between the two by governor motion.
8, guide roller according to claim 6, it is characterized in that guide roller be split, can regulate two roll bodies in gap between the two by governor motion.
9, according to claim 3 or 4 or 5 or 8 described guide rollers, it is characterized in that roll body comprises roller sheet and roller plate base, roller sheet and roller plate base can be splits.
10, the guide roller that utilizes its vertical rib guiding when the aligning reinforcing bar according to claim 6 is characterized in that roll body comprises roller sheet and roller plate base, and roller sheet and roller plate base can be splits.
11, the guide roller that utilizes its vertical rib guiding when the aligning reinforcing bar according to claim 7 is characterized in that roll body comprises roller sheet and roller plate base, and roller sheet and roller plate base can be splits.
12,, it is characterized in that the roller sheet can be inserted by several to form according to claim 3 or 4 or 5 or 8 or 10 or 11 described guide rollers.
13, guide roller according to claim 6 is characterized in that the roller sheet can be inserted by several to form.
14, guide roller according to claim 7 is characterized in that the roller sheet can be inserted by several to form.
15, guide roller according to claim 9 is characterized in that the roller sheet can be inserted by several to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031248659A CN100374226C (en) | 2003-09-25 | 2003-09-25 | Method for straightening hot rolled reinforcing steel bar having ribs and deflecting roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031248659A CN100374226C (en) | 2003-09-25 | 2003-09-25 | Method for straightening hot rolled reinforcing steel bar having ribs and deflecting roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1600472A true CN1600472A (en) | 2005-03-30 |
| CN100374226C CN100374226C (en) | 2008-03-12 |
Family
ID=34658726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031248659A Expired - Fee Related CN100374226C (en) | 2003-09-25 | 2003-09-25 | Method for straightening hot rolled reinforcing steel bar having ribs and deflecting roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100374226C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754603A (en) * | 2014-01-22 | 2014-04-30 | 建科机械（天津）股份有限公司 | Device for preventing string rib from distorting in steel bar truss production line |
| CN108015190A (en) * | 2017-12-12 | 2018-05-11 | 宁波市华欣建材测试有限公司 | The straightener and its method for aligning of Ribbed Bar |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2270023A1 (en) * | 1974-02-19 | 1975-12-05 | Ravni Etienne | Machine supplying concrete reinforcement bars - has straightening rollers and rotary frame, cut-off and discharge devices |
| SU820994A1 (en) * | 1979-06-27 | 1981-04-15 | Yakimyuk Nikolaj V | Machine for producing vibration-support spiral reinforcement |
| FR2662379B1 (en) * | 1990-05-22 | 1992-09-04 | Carrere Noel | METHOD AND DEVICE FOR AUTOMATIC ADJUSTMENT OF ROLLER DRESSERS. |
| US5617754A (en) * | 1995-12-21 | 1997-04-08 | Kenneth A. Kauffman | Single stage two plane coiled reinforcing bar stock straightener |
| CN2465832Y (en) * | 2000-10-25 | 2001-12-19 | 张光伟 | Hot rolled ribbed bar straightener |
| CN2524863Y (en) * | 2001-08-07 | 2002-12-11 | 张光伟 | Press roller of hot rolling ribbed steel bar coil decoiling straightening machine |
| CN2702794Y (en) * | 2003-09-25 | 2005-06-01 | 张光伟 | Hot-rolled finned steel bar straightener guiding roll |
-
2003
- 2003-09-25 CN CNB031248659A patent/CN100374226C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754603A (en) * | 2014-01-22 | 2014-04-30 | 建科机械（天津）股份有限公司 | Device for preventing string rib from distorting in steel bar truss production line |
| CN103754603B (en) * | 2014-01-22 | 2016-04-13 | 建科机械（天津）股份有限公司 | Steel bar girder manufacturing line prevent string muscle recking means for cargo |
| CN108015190A (en) * | 2017-12-12 | 2018-05-11 | 宁波市华欣建材测试有限公司 | The straightener and its method for aligning of Ribbed Bar |
| CN108015190B (en) * | 2017-12-12 | 2019-09-10 | 宁波市华欣建材测试有限公司 | The straightener and its method for aligning of Ribbed Bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100374226C (en) | 2008-03-12 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hengyang Weili Reinforcing Machine Co., Ltd. Assignor: Zhang Guangwei Contract record no.: 2011430000078 Denomination of invention: Method for straightening hot rolled reinforcing steel bar having ribs and deflecting roller Granted publication date: 20080312 License type: Exclusive License Open date: 20050330 Record date: 20110613 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080312 Termination date: 20120925 |