CN2661335Y - Straightening device of hot rolled reinforced bar with rib - Google Patents
Straightening device of hot rolled reinforced bar with rib Download PDFInfo
- Publication number
- CN2661335Y CN2661335Y CN 03248902 CN03248902U CN2661335Y CN 2661335 Y CN2661335 Y CN 2661335Y CN 03248902 CN03248902 CN 03248902 CN 03248902 U CN03248902 U CN 03248902U CN 2661335 Y CN2661335 Y CN 2661335Y
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- China
- Prior art keywords
- straightening
- rib
- roller
- hot rolled
- reinforced bar
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- Expired - Lifetime
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Abstract
The utility model relates to a straightening device of a hot-rolled reinforced bar with a rib, which comprises a pre-straightening mechanism and a longitudinal rib guiding mechanism, wherein the pre-straightening mechanism 2 is provided with a pre-straightening rolling group 1, the longitudinal rib guiding mechanism 5 is provided with a guiding roller 6, and a roller 3 and a guiding rail 4 are arranged between the pre-straightening mechanism 2 and the longitudinal rib guiding mechanism 5. Compared with the background art, the utility model has the advantages that because the hot-rolled reinforced bar with a rib enters the guiding roller of which the distance at least is 0.4 meter from the pre-straightening rolling group, the guiding roller conducts the inverse twist for the reinforced bar which is at least 0.4 meter. Only through exerting certain torque force for the reinforced bar on the longitudinal rib, the straightening device can conduct the continuous guiding for the reinforced bar through the longitudinal rib, avoids the longitudinal rib of the reinforced bar twisting and the longitudinal and the transverse ribs badly damaging, and ensures that the qualified reinforced bar is straightened by the subsequent process steps. Meanwhile, because the roller and the guide rail are arranged between the pre-straightening mechanism and the longitudinal rib guiding mechanism, the utility model can efficiently avoid the problem that the tail end of the reel knots or swings to hurt people by losing control.
Description
Technical field
The utility model relates to a kind of wire rod equipment for straightening, particularly equipment for straightening hot rolled reinforcing steel bar with rib.
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 a kind of existing common reinforcing bar has, the wire rod that the vertical rib of two projection symmetries is arranged again, 6 millimeters of Φ are arranged, 8 millimeters of Φ, 10 millimeters of Φ, 12 millimeters of Φ, 14 millimeters of Φ and Φ wait all size for 16 millimeters, 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; To coil along its every circle of having axially launches to have fixedly to align in the posture equipment for straightening, fixedly the posture equipment for straightening comprises pay off rack, receives guide frame, pre-straightening mechanism, vertical rib guiding mechanism, haulage gear, straightening mechanism, shut-off mechanism and blanking mechanism, 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, and 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 still there is a following deficiency:
1,, only considers the distance of each device from the compactness of a whole set of equipment for straightening, the angle of being convenient to Operation and maintenance because when the design and installation equipment for straightening.Usually, the distance the guide roller in the vertical rib guiding mechanism is a 0.1-0.2 rice from pre-straightening mechanism pre-straightening roller group to the main frame rear portion.Like this, the reinforcing bar that comes out from pre-straightening roller group will enter guide roller immediately.Because hot rolled ribbed steel bar is coiled along the axial expansion of every circle and by after the pre-straightening roller group, vertical rib is the state that reverses and advances, and the bigger distorting stress of existence, at this moment allow reinforcing bar enter guide roller immediately by its vertical rib, be equivalent to guide roller to one section counter turning round of very short reinforcing bar, because the working face of guide roller is to act on the two sides and root basic circle of steel longitudinal rib, certainly will to apply bigger circumferential torsion to reinforcing bar, promptly vertical rib is applied bigger horizontal shear force, when this torsion arrived to a certain degree greatly, not only short but also thin vertical rib might be cut off.Its consequence is, vertical rib departs from the guide roller working portion, steel longitudinal rib can not get continuous steerable, non-circular reinforcing bar is the state that is twisting and can't advances according to the track of setting, rib will be damaged by pressure in length and breadth, follow-up work step can't be aligned out qualified reinforcing bar, causes the steel longitudinal rib distortion, the major injury of longitudinal and transverse rib;
2. after coiling the pre-straightening roller group of tail end from pre-straightening mechanism and coming out, coil tail end because easy knotting out of hand or swing are hurted sb.'s feelings.
Summary of the invention
The purpose of this utility model provides a kind of steel longitudinal rib of avoiding and twists the equipment for straightening hot rolled reinforcing steel bar with rib of longitudinal and transverse rib major injury.
The technical scheme that realizes the utility model above-mentioned purpose is: equipment for straightening hot rolled reinforcing steel bar with rib comprises pre-straightening mechanism and vertical rib guiding mechanism, pre-straightening roller group is arranged in the pre-straightening mechanism, on the vertical rib guiding mechanism guide roller is arranged, pre-straightening roller group is at least 0.4 meter to the distance between the guide roller.
The further technical scheme of the utility model is: pre-straightening roller group is a 0.5-10 rice to the distance between the guide roller.
The utility model further technical scheme is: pre-straightening roller group is a 0.6-8 rice to the distance between the guide roller.
The further again technical scheme of the utility model is: when the hot rolled ribbed steel bar of aligning Φ 6-8 millimeter, pre-straightening roller group is a 0.7-1.5 rice to the distance between the guide roller; When the hot rolled ribbed steel bar of aligning Φ 8-12 millimeter, pre-straightening roller group is a 1.5-3 rice to the distance between the guide roller; When the hot rolled ribbed steel bar of aligning Φ 12-16 millimeter, pre-straightening roller group is a 3-5 rice to the distance between the guide roller; When the hot rolled ribbed steel bar of aligning Φ 6-16 millimeter, serve as according to determining that from pre-straightening roller group to the distance the guide roller, promptly pre-straightening roller group is a 3-5 rice to the distance between the guide roller just with the required distance of aligning 16 millimeters reinforcing bars of Φ.Because the distorting stress of reinforcing bar is directly proportional with the cross-sectional area of reinforcing bar approximately.
For avoiding coiling the tail end knotting or swing and hurt sb.'s feelings, between pre-straightening mechanism and vertical rib guiding mechanism, establish roller and guide rail.
The beneficial effect that the utility model is compared background technology is: because hot rolled ribbed steel bar enters behind at least 0.4 meter guide roller from pre-straightening roller group, be equivalent to guide roller one section at least 0.4 meter reinforcing bar is carried out detorsion, because the reinforcing bar through pre-straightening also exists certain windup-degree and distorting stress, when reinforcing bar was applied anti-torsion, the length between its needed power and two impetus was inversely proportional to.As long as on vertical rib, reinforcing bar is applied certain torsion, just can carry out continuous steerable to reinforcing bar by vertical rib, avoid the steel longitudinal rib distortion, the major injury of longitudinal and transverse rib guarantees that follow-up work step aligns out qualified reinforcing bar.Simultaneously, owing between pre-straightening mechanism and vertical rib guiding mechanism, establish roller and guide rail, can effectively avoid coiling tail end because out of hand and knotting or swing are hurted sb.'s feelings.
Description of drawings
Accompanying drawing is the structural representation of the utility model equipment for straightening hot rolled reinforcing steel bar with rib.
Below in conjunction with drawings and Examples the utility model is further described.
Specific embodiments
Embodiment one:
As shown in drawings: equipment for straightening hot rolled reinforcing steel bar with rib comprises pre-straightening mechanism 2 and vertical rib guiding mechanism 5, pre-straightening roller group 1 is arranged in the pre-straightening mechanism 2, on the vertical rib guiding mechanism 5 guide roller 6 is arranged, be provided with roller 3 and guide rail 4 between pre-straightening mechanism 2 and the vertical rib guiding mechanism 5, guide rail 4 leads to the vertical rib guiding mechanism 5 of main frame rear side from pre-straightening mechanism 2 bottoms.Pre-straightening roller group 1 can be one group, also can be more than one group, and its pressure roller axis can the parallel, horizontal face, also can vertical level.
When the hot rolled ribbed steel bar of aligning Φ 6-8 millimeter, pre-straightening roller group 1 is a 0.7-1.5 rice to the distance between the guide roller 6.
Coil by the spiral status after launching when hot rolled ribbed steel bar, change into basic linear state, and by after the pre-straightening roller group 1, its vertical rib still is twisting states and exists bigger distorting stress to enter guide roller 6.Because pre-straightening roller group 1 has 0.7-1.5 rice to the distance between the guide roller 6, also just be equivalent to pre-straightening roller group 1 and guide roller 6 and clamp counter the turning round in reinforcing bar two ends of a certain section 0.7-1.5 rice respectively, because this torsion and reinforcing bar length are inversely proportional to, so this moment, the guide roller working face only needed reinforcing bar two vertical rib sides are imposed less cross force, and being enough to bear this power, steel longitudinal rib can not be cut off, guide roller 6 just can be well on and continuous guiding to steel longitudinal rib, it is advanced according to the straight path of setting, make follow-up work step align out the maximum torsion resistance of vertical rib and be no more than 20 °, the undamaged qualified reinforcing bar of cross rib.After coiling the reinforcing bar tail end and entering pre-straightening roller group 1, pre-straightening mechanism 2 is along with reinforcing bar drives to the main frame rear side, after waiting to coil the reinforcing bar tail end and entering guide roller 6, pre-straightening mechanism 2 sails also original position again, and this measure can be avoided coiling the reinforcing bar tail end and hurt sb.'s feelings from come out back knotting or swing of pre-straightening roller group 1.
Embodiment two: when the hot rolled ribbed steel bar of aligning Φ 8-12 millimeter, pre-straightening roller group 1 is a 1.5-3 rice to the distance between the guide roller 6.All the other are with embodiment one.
Embodiment three: when the hot rolled ribbed steel bar of aligning Φ 12-16 millimeter, pre-straightening roller group 1 is a 3-5 rice to the distance between the guide roller 6.All the other are with embodiment one.
Embodiment four: when the hot rolled ribbed steel bar of aligning Φ 6-16 millimeter, serve as according to determining that from pre-straightening roller group to the distance the guide roller, promptly pre-straightening roller group is a 3-5 rice to the distance between the guide roller with the required distance of aligning 16 millimeters reinforcing bars of Φ just.All the other are with embodiment one.
The utility model to the contribution of prior art is: the diameter according to reinforcing bar is determined pre-straightening The roller group is to the distance between the guide roller. Because, on the angle that overcomes reinforcing bar torsion, between the two Distance good, be conducive to guide roller reinforcing bar carried out detorsion; But from a whole set of equipment for straightening compactness Angle considers that whole unit takes up space can not be too big. So distance between the two should suit, Both should not be too far away, also should not be too near. If align simultaneously 16 millimeters of Φ with a playscript with stage directions novel practical And the reinforcing bar of following all size, then should be take the required distance of 16 millimeters reinforcing bars of aligning Φ as according to true Fixed from pre-straightening roller group to the distance the guide roller, namely between the two distance is comparatively suitable with 3-5 rice Suitable.
Claims (4)
1, a kind of equipment for straightening hot rolled reinforcing steel bar with rib, it comprises pre-straightening mechanism and vertical rib guiding mechanism, and pre-straightening roller group is arranged in the pre-straightening mechanism, on the vertical rib guiding mechanism guide roller is arranged, and it is characterized in that pre-straightening roller group is at least 0.4 meter to the distance between the guide roller.
2, equipment for straightening hot rolled reinforcing steel bar with rib according to claim 1 is characterized in that pre-straightening roller group is a 0.5-10 rice to the distance between the guide roller.
3, equipment for straightening hot rolled reinforcing steel bar with rib according to claim 2 is characterized in that pre-straightening roller group is a 0.7-1.5 rice to the distance between the guide roller when the hot rolled ribbed steel bar of aligning Φ 6-8 millimeter; When the hot rolled ribbed steel bar of aligning Φ 8-12 millimeter, pre-straightening roller group is a 1.5-3 rice to the distance between the guide roller; When the hot rolled ribbed steel bar of aligning Φ 12-16 millimeter, pre-straightening roller group is a 3-5 rice to the distance between the guide roller; When the hot rolled ribbed steel bar of aligning Φ 6-16 millimeter, serve as according to determining that from pre-straightening roller group to the distance the guide roller, promptly pre-straightening roller group is a 3-5 rice to the distance between the guide roller just with the required distance of aligning 16 millimeters reinforcing bars of Φ.
4,, it is characterized in that between pre-straightening mechanism and vertical rib guiding mechanism, establishing roller and guide rail according to claim 1 or 2 or 3 described equipment for straightening hot rolled reinforcing steel bar with rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03248902 CN2661335Y (en) | 2003-09-25 | 2003-09-25 | Straightening device of hot rolled reinforced bar with rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03248902 CN2661335Y (en) | 2003-09-25 | 2003-09-25 | Straightening device of hot rolled reinforced bar with rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2661335Y true CN2661335Y (en) | 2004-12-08 |
Family
ID=34327418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03248902 Expired - Lifetime CN2661335Y (en) | 2003-09-25 | 2003-09-25 | Straightening device of hot rolled reinforced bar with rib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2661335Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406152C (en) * | 2003-09-25 | 2008-07-30 | 张光伟 | Method for straightening hot rolled reinforcing steel bar having ribs and equipment |
| CN105057839A (en) * | 2013-10-16 | 2015-11-18 | 南安市文发电子科技有限公司 | Telescopic electric soldering iron temperature dissipation rack |
-
2003
- 2003-09-25 CN CN 03248902 patent/CN2661335Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406152C (en) * | 2003-09-25 | 2008-07-30 | 张光伟 | Method for straightening hot rolled reinforcing steel bar having ribs and equipment |
| CN105057839A (en) * | 2013-10-16 | 2015-11-18 | 南安市文发电子科技有限公司 | Telescopic electric soldering iron temperature dissipation rack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080730 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |