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Equipment for straightening hot rolled reinforcing steel bar having ribs

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Publication number
CN100406152C
CN100406152C CN 03124866 CN03124866A CN100406152C CN 100406152 C CN100406152 C CN 100406152C CN 03124866 CN03124866 CN 03124866 CN 03124866 A CN03124866 A CN 03124866A CN 100406152 C CN100406152 C CN 100406152C
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reinforcing
straightening
hot
bar
rolled
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CN 03124866
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Chinese (zh)
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CN1600473A (en )
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张光伟
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张光伟
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Abstract

一种热轧带肋钢筋矫直方法及设备,其设备包括预矫直机构和纵肋导向机构,预矫直机构2上有预矫直辊组1,纵肋导向机构5上有导向辊6,预矫直机构2和纵肋导向机构5之间设有滚轮3和导轨4。 A hot rolled ribbed bar straightening method and apparatus, which apparatus includes a pre-straightening means and the longitudinal guide rib, with a pre-straightening roller set 1, a guide roller 6 on longitudinal ribs on the guide means 5 pre-straightening mechanism 2 pre-straightening mechanism 4 is provided between the roller 3 and the guide rail 2 and the guide longitudinal ribs 5. 本发明相比背景技术的有益效果是:由于热轧带肋钢筋从预矫直辊组进入相距至少0.4米的导向辊后,相当于导向辊对一段至少0.4米的钢筋进行反扭转,只要在纵肋上对钢筋施加一定的扭力,便可通过纵肋对钢筋进行连续导向,避免钢筋纵肋扭曲,纵、横肋的严重损伤,保证后续工步矫直出合格钢筋;同时,由于在预矫直机构和纵肋导向机构之间设滚轮和导轨,能有效避免盘卷尾端因为失去控制而打结或者摆动伤人。 BACKGROUND ART A beneficial effect of the present invention: since the pre-rolled ribbed bar straightening roller set distance of at least 0.4 meters into the guide roller after the guide roller pair corresponding to at least 0.4 m section of reinforced anti-twisting, as long as of reinforced longitudinal ribs applied constant torque, the guide can be continuously reinforced by longitudinal ribs, to avoid distortion of reinforced longitudinal ribs, longitudinal and transverse ribs severely damaged, a subsequent process step to ensure that the qualified straightening steel; Meanwhile, since the pre and a guide roller disposed between the straightening means and the longitudinal guide ribs, can effectively avoid the loss of control since the trailing end of the coil or knotting rocking wounding.

Description

热轧带肋钢筋矫直设备技术领域本发明涉及一种线材矫直方法及设备,特别是热轧带肋钢筋矫直方法及设备。 Hot rolled ribbed bars straightening apparatus Technical Field The present invention relates to a method and apparatus for straightening wire, in particular ribbed bars straightening method and apparatus for hot-rolled. 背景技术自从建设部、冶金部1995年联合下发文件重点推广应用热轧带肋钢筋(特别是400Mpa新m级钢筋)以来,热轧带肋钢筋盘巻开巻矫直后纵肋扭曲,纵、横肋严重损伤的问题已经成为建筑业和冶金业一大难题,该难题虽经众多厂家数年努力,但一直未得到解决。 BACKGROUND Since the Ministry of Construction jointly issued a document, the Ministry of Metallurgy in 1995 focused on promoting the application of its hot-rolled ribbed steel bar (especially new m 400Mpa grade steel), hot-rolled ribbed steel plate Volume Open Volume longitudinal ribs twisted after straightening, vertical , transverse ribs serious injury has become the construction industry and metallurgical industry is a major problem, the problem despite the efforts of many manufacturers for several years, but has not been resolved. 热轧带肋钢筋是一种既有通常钢筋所具有的横肋、又有两条凸起对称的纵肋的线材,有06毫米、08毫米、OIO毫米、012毫米、014毫米和。 Is a hot rolled ribbed bar reinforcement typically has both transverse ribs, there are two raised longitudinal ribs symmetrical wire, there are 06 mm, 08 mm, the OIO mm, 012 mm, and 014 mm. 16毫米等各种规格,其是在900°C高温下被沿钢棒轴向旋转的轧辊挤压成形后,呈直线状出轧辊迸入不断旋转的螺旋形"吐丝管",沿该管划圈呈嫘旋状前进,在由直线运动改变为螺旋运动时,朝一个方向作每圈360^的扭转,冷却后定形为热轧带肋钢筋盘巻。 After 16 mm, and other specifications, which is the temperature at 900 ° C is extruded steel bar in the axial direction of the roll rotation, linearly into the constantly rotating rolls Beng spiral "laying pipe", along the tube Lei was spin-shape encircled proceeds, when changing from the linear motion to a helical movement, in one direction for each turn of twist 360 ^, after cooling a hot rolled ribbed bar shaped disc Volume. 有关厂家在矫直这种钢筋时采用过多种方法:有的按传统做法将盘巻放在转盘上,沿盘巻周围边缘展开后送入旋转框式矫直机构进行矫直,由于这种展开方法保持了钢筋原来的扭转,且矫直辊或矫直块在钢筋表面作螺旋式滚动,故矫直后纵肋扭转,纵、横肋损伤严重;有的将盘巻顺其每圈轴向展开有固定架式矫直设备中迸行矫直,固定架式矫直设备包括放线架、纳丝架、预矫直机构、纵肋导向机构、牵引机构、矫直机构、切断机构和落料机构,这种展开方法相当于从轧辊出来的钢筋由直线运动改变为螺旋运动的逆过程,且娇直辊在钢筋表面顺钢筋运动方向滚动,故在一定程度上避免了纵、横肋的损伤。 For manufacturers use this when straightening reinforced through a variety of methods: the traditional practice of some Volume disc on the turntable, along the peripheral edge of the disc Volume expand into the rotary box-type straightening mechanism for straightening, since this Expansion method maintained the original twist of the steel, and the straightening rollers or straightening rolling block as spiral steel surface, so that after straightening twisted longitudinal ribs, longitudinal and transverse ribs serious injury; Volume some disk along which each ring shaft straightening rack fixed to expand into line straightening device, the fixing device comprises a straightening rack line planes, Na Si frame, pre-straightening mechanism, guide longitudinal ribs, a traction mechanism, straightening mechanism, the cutting mechanism and blanking means, this method is equivalent to expand out of the steel roll is changed by the rolling motion of a linear motion in a spiral reverse process, Johnson and straight roller to roll along the surface of the steel reinforcement movement direction, it is avoided to some extent in the longitudinal, transverse ribs damage. 但仍然存在如下不足:1、 由于在设计和安装矫直设备时,仅从整套矫直设备的紧凑、便于操作和维修的角度来考虑各装置的距离。 There is still insufficient: 1, since in the design and installation of the straightening equipment, only a compact package of the straightening apparatus, ease of operation and maintenance point of view from each device. 通常,从预矫直机构预矫直辊组到主机后部纵肋导向机构内的导向辊之间的距离为0. 1-0. 2米。 Typically, the pre-straightening rolls from the pre-straightening mechanism to the rear of the main group longitudinal ribs between the guide roller within the guide means, a distance of 0. 1-0. 2 m. 这样,从预矫直辊组出来的钢筋将立即进入导向辊。 Thus, from the pre-roll straightening set out immediately into the steel guide rollers. 由于热轧带肋钢筋盘巻顺每圈轴向展开并通过预矫直辊组后,纵肋呈扭转的状态前进,而且存在较大的扭转应力,这时让钢筋通过其纵肋立即迸入导向辊,相当于导向辊对一段很短的钢筋进行反扭,因为导向辊的工作面是作用在钢筋纵肋的两倒面和根部基圆上,势必要对钢筋施加较大的周向扭力,即对纵肋施加较大的横向切力,此扭力大到一定程度时,又短又薄的纵肋有可能被切掉。 Since each turn axially ribbed steel bars hot-rolled plate along Volume expanded by the pre-leveler roller set, twisted longitudinal ribs was advanced state, and there is a large torsional stress, so that time through which the steel immediately Beng longitudinal rib guide rollers, the guide rollers corresponds to a short anti-twisting steel, since the guide roller face is reinforced longitudinal ribs acting on both faces down and a root base circle, is bound to apply a large torque in the circumferential direction of steel , i.e., applying a large shear force on the lateral longitudinal ribs, when this torque to a certain extent, short and thin, there may be cut longitudinal ribs. 其后果是,纵肋偏离导向辊工作部分,钢筋纵肋得不到连续导向,非圆形的钢筋呈扭动着的状态而无法按照设定的轨迹前进,纵横肋将被压坏,后续工步无法矫直出合格钢筋,导致钢筋纵肋扭曲,纵、横肋的严重损伤;2. 当盘巻尾端从预矫直机构中的预矫直辊组出来后,盘巻尾端因为失去控制容易打结或者摆动伤人。 As a consequence, longitudinal ribs offset from guide roller working portion longitudinal ribs are not continuous steel guide, as a non-circular twisted steel can not move forward in accordance with a state of the track set, the aspect will be crushed ribs, subsequent processing station not qualified steel straightening step, leads to distortion of reinforced longitudinal ribs, longitudinal and transverse ribs of serious injury; 2. when the trailing end of the disc Volume from the pre-pre-straightening mechanism straightening roller set, the trailing end of the disc because of the loss Volume control knot easily swung or wounding. 发明内容本发明的目的之一是提供热轧带肋钢筋矫直方法。 One object of the present invention to provide a method for straightening rolled steel ribbed. 实现本发明上述目的的技术方案是:根据被矫直钢筋的横截面积大小来确定预矫直辊组到导向辊之间的距离远近,被矫直钢筋的横截面积大剿两者之间的距离远,被矫直钢筋的横截面积小则两者之间的距离近。 The technical solution of the present invention the above object is: according to the size of the cross-sectional area of ​​steel straightening roll straightening group pre-determined distance to the distance between the guide rollers, between the large cross-sectional area of ​​steel straightening destroy the distance is a small cross-sectional area of ​​the steel bar straightening the distance between the two closer. 本发明的目的之二是提供一种能避免钢筋纵肋扭曲,纵、横肋严重损伤的热轧带肋钢筋矫直设备。 Second object of the present invention is to provide a reinforced longitudinal ribs avoids twisting, longitudinal, transverse ribs of severe injury rolled ribbed steel straightening device. 实现本发明上述目的的技术方案是:热轧带肋钢筋矫直设备包括预矫直机构和纵肋导向机构,预矫直机构上有预矫直辊组,纵肋导向机构上有导向辊,预矫直辊组到导向辊之间的距离为至少0.4米。 The object of the present invention to achieve the above technical scheme is: hot rolled ribbed bars straightening apparatus comprises a pre-straightening means and the longitudinal guide rib, with a pre-straightening roller set pre-straightening mechanism, a guide roller guide longitudinal ribs, pre-straightening roller set to a distance of at least 0.4 m between the guide rollers. 本发明进一步的技术方案是:预矫直辊组到导向辊之间的距离为0.5-10米。 A further aspect of the present invention is: a pre-straightening roller set to the distance between the guide roller 0.5 to 10 m. 本发明更进一步的技术方案是:预矫直辊组到导向辊之间的距离为0.6-8米。 A further aspect of the present invention are: a pre-straightening roller set distance between the guide rollers of 0.6-8 meters. 本发明再进一步的技术方案是:在矫直0>6-8毫米的热轧带肋钢筋时,预矫直辊组到导向辊之间的距离为0.7-1.5米;在矫直08-12毫米的热轧带肋钢筋时,预矫直辊组到导向辊之间的距离为1.5-3米;在^^直0> 12-16毫米的热轧带肋钢筋时,预矫直辊组到导向辊之间的距离为3-5米; 在矫直06 - 16毫米的热轧带肋钢筋时,便以矫直016毫米钢筋所需的距离为依据确定从预矫直辊组到导向辊之间的距离,即预矫直辊组到导向辊之间的距离为3-5米。 The present invention still further technical solution is: 0 when the straightening> 6-8 mm hot rolled ribbed bar, pre-leveler to set the distance between the roller guide roller is 0.7-1.5 m; straightening 08-12 mm when rolled ribbed bar, pre-straightening roller set distance between the guide rollers of 1.5-3 m; ^^ straight 0 when> 12-16 mm hot rolled ribbed bar, pre-straightening roller set the distance between the guide rollers to 3-5 m; straightening 06-- 16 mm hot rolled ribbed bar, then the desired straightening steel 016 mm distance from the pre-determined based on the set of straightening rolls guide distance between the rollers, i.e. the pre-straightening roller set distance between the guide rollers 3-5 meters. 因为钢筋的扭转应力约与钢筋的横截面积成正比。 Because the torsional stress of about proportional to the cross sectional area of ​​the steel reinforcement. 为避免盘巻尾端打结或摆动伤人,在预矫直机构和纵肋导向机构之间设滚轮和导轨。 To avoid oscillating disc Volume knot or tail wounding, and guide rollers disposed between the pre-straightening mechanism and the longitudinal guide rib. 本发明相比背景技术的有益效果是:由于热轧带肋钢筋从预矫直辊组进入相距至少0.4米的导向辊后,相当于导向辊对一段至少0.4米的钢筋进行反扭转,因为经过预矫直的钢筋还存在一定的扭转角度和扭转应力, 当对钢筋施加反扭力时,其所需要的力与两着力点之间的长度成反比。 BACKGROUND ART A beneficial effect of the present invention: since the pre-rolled ribbed bar straightening roller set distance of at least 0.4 meters into the guide roller after the guide roller pair corresponding to at least 0.4 m section of reinforced anti-twist, because after pre-leveler further reinforced certain torsion angle and the torsion stress, when applying a reverse torque to the steel, is inversely proportional to the length of the force between the two and it needs focus. 只要在纵肋上对钢筋施加一定的扭力,便可通过纵肋对钢筋进行连续导向, 避免钢筋纵肋扭曲,纵、横肋的严重损伤,保证后续工步矫直出合格钢筋。 As long as a certain torque is applied to the steel in the longitudinal ribs, the guide can be continuously reinforced by longitudinal ribs, to avoid distortion of reinforced longitudinal ribs, longitudinal and transverse ribs severely damaged, a subsequent process step to ensure that the straightening qualified steel. 同时,由于在预矫直机构和纵肋导向机构之间设滚轮和导轨,能有效避免盘巻尾端因为失去控制而打结或者摆动伤人。 Meanwhile, since the guide rollers and disposed between the pre-straightening mechanism and the longitudinal guide ribs, can effectively avoid the loss of control because the disc Volume tail swing wounding or knotting. 附图说明附图为本发明热轧带肋钢筋矫直设备的结构示意图。 BRIEF DESCRIPTION OF THE DRAWINGS structural diagram of the present invention ribbed bars straightening apparatus of a hot strip. 下面结合附图和实施例对本发明作进一步描述。 The present invention is further described below in conjunction with the accompanying drawings and embodiments. 具体实施方案如附图所示:热轧带肋钢筋矫直设备包括预矫直机构2和纵肋导向机构5,预矫直机构2上有预矫直辊组1,纵肋导向机构5上有导向辊6, 预矫直机构2和纵肋导向机构5之间设有滚轮3和导轨4,导轨4从预矫直机构2底部通向主机后侧的纵肋导向机构5。 As the specific embodiments shown in the drawings: Hot rolled ribbed bars straightening apparatus comprises a pre-straightening mechanism 2 and guide longitudinal ribs 5, with a pre-straightening roller set 1, 2 on the longitudinal ribs on the guide means pre-straightening mechanism 5 a guide roller 6, is provided with guide rollers 3 and 4, the guide rail 4 leading to the rear side of the host from the bottom of the pre-straightening mechanism 2 guide means 5 between the longitudinal ribs and the longitudinal ribs 2 guide means 5 pre-straightening mechanism. 预矫直辊组1可以是一组, 也可以是一组以上,其压辊轴线可以平行水平面,也可以垂直水平面。 Pre-straightening roll set 1 may be a group, may be more than one group, which may be parallel to the horizontal axis of the platen roller, may be vertical level. 在矫直06-8毫米的热轧带肋钢筋时,预矫直辊组1到导向辊6之间的距离为0.7-1.5米。 When straightening 06-8 mm hot rolled ribbed bar, a pre-straightening roller set to a distance between the guide roller 6 0.7-1.5 meters. 当热轧带肋钢筋盘巻由展开后的螺旋状态,改变为基本直线状态,并通过预矫直辊组1后,其纵肋仍然呈扭转状态而且存在较大的扭转应力进入导向辊6。 When the hot-rolled steel ribbed plate by the coil Volume expanded state, a substantially linear state change, and through the pre-leveler roller group 1, which longitudinal ribs twisted state and there was still a large torsional stress into the guide roller 6. 由于预矫直辊组1到导向辊6之间的距离有0.7-1.5米,也就相当于预矫直辊组1和导向辊6分别夹住某一段0.7-1.5米的钢筋两端进行反扭,因为这种扭力与钢筋长度成反比,所以此时导向辊工作面只需对钢筋两纵肋侧面施以较小的横向力,而钢筋纵肋足以承受这种力不会被切断,导向辊6便可对钢筋纵肋进行顺利和连续的导向,使其按照设定的直线轨迹前迸,使后续工步矫直出纵肋最大扭曲度不超过20°、横肋无损伤的合格钢筋。 1 since the pre-straightening roller set to a distance between the guide roller 6 with a 0.7-1.5 m, it is equivalent to a pre-straightening roller and the guide roller group 6 at both ends for clamping a certain period of from 0.7 to 1.5 meters of reinforced anti twist, since such torque is inversely proportional to the bar length, so in this case the guide roll face only two longitudinal ribs of reinforced side subjected to less lateral force, and longitudinal reinforcement ribs sufficient to withstand such forces will not be cut, the guide 6 rolls of reinforced longitudinal ribs can be smooth and continuous guide, so that a straight trajectory before Beng set according to the subsequent process step the longitudinal ribs straightening maximum distortion does not exceed 20 °, the cross-rib undamaged reinforced qualifying . 当盘巻钢筋尾端进入预矫直辊组1后,预矫直机构2随着钢筋行驶到主机后侧,待盘巻钢筋尾端进入导向辊6后,预矫直机构2 再驶还原位,此措施可避免盘巻钢筋尾端从预矫直辊组1出来后打结或摆动伤人。 When the trailing end of the disc into the pre-leveler Volume steel roller set after 1, reinforced with a pre-straightening mechanism 2 to the rear with the host, until the tail end of reinforced plate Volume after entering the guide roller 6, and then the pre-straightening mechanism 2 driving reduction site this measure can avoid the steel plate Volume knot or tail swing 1 from wounding the pre-leveler roller set. 实施例二:在矫直3>8-12毫米的热轧带肋钢筋时,预矫直辊组1到导向辊6之间的距离为1.5-3米。 Example Two: In straightening 3> 8-12 mm hot rolled ribbed bar, a pre-straightening roller set to a distance between the guide roller 6 is 1.5-3 m. 其余同实施例一。 With the remaining first embodiment. 实施例三:在矫直012-16毫米的热轧带肋钢筋时,预矫直辊组l到导向辊6之间的距离为3-5米。 Example Three: 012-16 distance mm straightening rolled ribbed bar, the pre-straightening roller set between the guide roller 6 l is 3-5 meters. 其余同实施例一。 With the remaining first embodiment. 实施例四:在矫直①6-16毫米的热轧带肋钢筋时,便以矫直016毫米钢筋所需的距离为依据确定从预矫直辊组到导向辊之间的距离,即预矫直辊组到导向辊之间的距离为3-5米。 Fourth Embodiment: In the straightening ①6-16 mm hot rolled ribbed bar, then the desired straightening steel 016 mm distance is based on pre-determined distance from the guide roller straightening roller set, i.e., pre-emphasis group to the straight distance between the roller guide rollers 3-5 meters. 其余同实施例一。 With the remaining first embodiment. 本发明对现有技术的贡献是:根据钢筋的直径大小来确定预矫直辊组到导向辊之间的距离。 The present contribution to the prior art are: pre-determined set of straightening rolls the distance between the guide rollers according to the diameter size of the steel. 因为,从克服钢筋扭力的角度上讲,两者之间的距离远好,有利于导向辊对钢筋进行反扭转;但从整套矫直设备紧凑的角度来考虑,整个机组所占空间不能太大。 Because, from the point of view of overcoming the steel torsion speaking, the distance between the two is much better, help guide rollers for steel anti-reverse; but the whole compact straightening equipment point of view, the entire unit occupied space is not too large . 所以,两者之间的距离应适宜,既不宜太远,也不宜太近。 Therefore, the distance between the two should be suitable, not only too far, and it is not too close. 如果要用一台本发明同时矫直016毫米及以下各种规格的钢筋,则应以矫直016毫米钢筋所需的距离为依据确定从预矫直辊组到导向辊之间的距离,即两者之间的距离以3-5米较为适宜。 If the use of the present invention, while straightening a 016 mm or less and a variety of steel, straightening should be 016 mm at a desired distance is based on steel from the pre-determined distance between the guide roller straightening roller set, i.e., two the distance between the more suitable to 3-5 meters.

Claims (3)

1. 一种热轧带肋钢筋矫直设备,它包括预矫直机构和纵肋导向机构,预矫直机构上有预矫直辊组,纵肋导向机构上有导向辊,其特征是预矫直辊组到导向辊之间的距离为至少0.4米。 A hot rolled ribbed bar straightening apparatus, which includes a pre-straightening means and the longitudinal guide rib, there is a pre-straightening roller set pre-straightening mechanism, a guide roller guide longitudinal ribs, characterized in that the pre- straightening roller set to a distance between the guide rollers of at least 0.4 m.
2、 根据权利要求1所述的热轧带肋钢筋矫直设备,其特征是预矫直辊组到导向辊之间的距离为0.5-10米。 2, according to a hot rolled ribbed steel according to claim straightening device, characterized in that the pre-leveler to set the distance between the roller guide roller is 0.5 to 10 m.
3、 根据权利要求2所述的热轧带肋钢筋矫直设备,其特征是在矫直06-8毫米的热轧带肋钢筋时,预矫直辊组到导向辊之间的距离为0.7-1.5 米;在矫直OS-12毫米的热轧带肋钢筋时,预矫直辊组到导向辊之间的距离为1.5-3米;在矫直0) 12-16毫米的热轧带肋钢筋时,预矫直辊组到导向辊之间的距离为3-5米;在矫直06-16毫米的热轧带肋钢筋时,便以矫直①16毫米钢筋所需的距离为依据确定从预矫直辊组到导向辊之间的距离,即预矫直辊组到导向辊之间的距离为3-5米。 3, the hot-rolling according to claim 2, ribbed steel bars straightening apparatus, wherein when the straightening 06-8 mm hot rolled ribbed bar, pre-straightening roller set to a distance between the guide roller 0.7 -1.5 m; when straightening OS-12 mm hot rolled ribbed bar, pre-straightening roller set distance between the guide rollers of 1.5-3 m; 0 straightening) 12-16 mm hot-rolled strip when ribbed bars, pre-straightening roller set to the distance between the guide rollers 3-5 m; 06-16 mm during straightening rolled ribbed bar, then the desired reinforcement straightening ①16 mm distance is based determining the distance from the pre-straightening roller set between the guide rollers to, i.e. the pre-straightening roller set distance between the guide rollers 3-5 meters.
CN 03124866 2003-09-25 2003-09-25 Equipment for straightening hot rolled reinforcing steel bar having ribs CN100406152C (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916662A (en) 1972-11-14 1975-11-04 Welland Iron & Metal Co Apparatus for straightening and cutting reinforcing bar
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
CN1431063A (en) 2003-02-07 2003-07-23 曲海涛 Duplex type machine for straightening and cutting off reinforcing steel bars
CN2661335Y (en) 2003-09-25 2004-12-08 张光伟 Straightening device of hot rolled reinforced bar with rib

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916662A (en) 1972-11-14 1975-11-04 Welland Iron & Metal Co Apparatus for straightening and cutting reinforcing bar
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
CN1431063A (en) 2003-02-07 2003-07-23 曲海涛 Duplex type machine for straightening and cutting off reinforcing steel bars
CN2661335Y (en) 2003-09-25 2004-12-08 张光伟 Straightening device of hot rolled reinforced bar with rib

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