公开(公告)号：US11826811B1

公开(公告)日：2023-11-28

申请号：US17859019

申请日：2022-07-07

Applicant: Guofen Luo

Inventor： Guofen Luo

IPC: B21D3/04 ,  B21D3/16

CPC classification number: B21D3/045 ,  B21D3/16

Abstract: An irregular tube straightener is disclosed, which comprises a machine frame, upper and lower pulley blocks which are configured on the front side of the machine frame and work together to reshape the irregular tube, and an adjusting device mounted on the machine frame and used to adjust the size of the gap between the upper pulley block and the lower pulley block. The adjusting device comprises an adjusting screw rod mounted on the machine frame, a handle fixed on the upper end of the adjusting screw rod, a lifting and lowering seat configured on the back side of the machine frame, and a threaded bushing fixed inside the lifting and lowering seat. The threaded section on the lower end of the adjusting screw rod is spirally fitted inside the threaded bushing. The upper pulley block comprises at least two upper pulleys.

公开(公告)号：US20200215594A1

公开(公告)日：2020-07-09

申请号：US16602962

申请日：2020-01-06

Applicant: Paul T. Pitney

Inventor： Paul T. Pitney

IPC: B21D3/04

Abstract: A hand-held tool for straightening tubing such as brake fluid lines in vehicles, the tool provides a housing having an outer covering, internally thereof, a series of sets of rollers, that are adjustable radially, supported by end frames, and intermediate the rollers and the outer covering is an adjuster ring, shiftable longitudinally within the housing, operatively associated with the rollers, such that when the adjuster ring is pulled outwardly, longitudinally, from the tool housing, the rollers shift radially outwardly, for accommodating larger tubing, and when the adjuster ring is pushed inwardly of the housing, the rollers are forced inwardly against smaller diameter tubing, in preparation for its straightening. A sector of the tool, usually along a quadrant, is opened from one end to the other of the tool, so as to allow the tool to be applied to the tubing to be straightened, anywhere along its length, and not only at its ends.

公开(公告)号：US20120304724A1

公开(公告)日：2012-12-06

申请号：US13589342

申请日：2012-08-20

Applicant: Yoshiyuki KUROIWA ,  Kouichi Kuroda ,  Tomio Yamakawa

Inventor： Yoshiyuki KUROIWA ,  Kouichi Kuroda ,  Tomio Yamakawa

IPC: B21D3/04 ,  B21D37/00

CPC classification number: B21D3/04

Abstract: A method for straightening a tube by using an asymmetric roll, which has different diameters D1 (exit side), D2 (entry side) at relative maximum diameter portions, left and right roll shoulder portions, as a straightening roll of a straightener, wherein the roll shoulder having a smaller diameter is disposed to be located on the tube entry side. The straightening roll used therefor comprises roll shoulders 3a and 3b and a roll barrel portion 4, in which D1>D2 and 0.004≦(D1−D2)/d≦0.2 (d: outer diameter of tube to be straightened) are satisfied. Further, an aspect of the invention may define radii of curvatures of entry-side and exit-side shoulder potions in a section of the roll cut along a plane including the roll central axis, or a curve representing an outer surface of the roll barrel portion.

Abstract translation: 通过使用作为矫直机的矫直辊的相对最大直径部分（相对最大直径部分）D2直径（入口侧）不同直径的不对称辊矫直管的方法，其中， 具有较小直径的辊肩设置在管入口侧。 用于其的矫直辊包括辊肩3a和3b以及辊筒部分4，其中D1> D2和0.004＆amp; N1;（D1-D2）/d≤n1E.0.2（d：要矫直的管的外径）。 此外，本发明的一个方面可以限定沿着包括辊中心轴的平面的辊切割部分中的入口侧和出口侧肩部的曲率半径，或表示辊筒部分的外表面的曲线 。

公开(公告)号：US20050191509A1

公开(公告)日：2005-09-01

申请号：US11039954

申请日：2005-01-24

Applicant: Takashi Nakashima ,  Kouichi Kuroda ,  Kenichi Beppu

Inventor： Takashi Nakashima ,  Kouichi Kuroda ,  Kenichi Beppu

IPC: B21C1/22 ,  B21D3/04 ,  B32B5/14 ,  F16C33/64 ,  F16L9/02

CPC classification number: C21D9/08 ,  B21D3/04 ,  Y10T428/12458

Abstract: Cold finished seamless steel tubes are made such that the residual stress F to be generated at the stage of the correction process after cold working is controlled to be 30 MPa or more and the scattering thereof is 30 MPa or less, when measured by Crampton method. Further, by adjusting the average grain size of spheroidized carbides, the dimensional change which emerges in lathe turning of the outside and inside diameter of relevant steel tubes due to the residual strain can be suppressed, and the strict roundness as well as the excellent machinability can be secured at the final processing stage of the work pieces for bearing parts. Consequently, steel tubes with high dimensional accuracy and less dimensional change at the final steps such as lathe turning, heat treatment and the like, can be made for use as bearing parts.

Abstract translation: 制成冷成品无缝钢管，使得在通过Crampton法测量时，在冷加工后的校正处理阶段中产生的残余应力F被控制为30MPa以上，散射为30MPa以下。 此外，通过调整球状碳化物的平均粒径，可以抑制由于残留应变而导致的相关钢管的外径和内径的车削转弯引起的尺寸变化，严格的圆度以及优异的机械加工性 在轴承零件的工件的最终加工阶段被固定。 因此，可以在诸如车床车削，热处理等的最终步骤中具有高尺寸精度和较小尺寸变化的钢管用作轴承部件。

公开(公告)号：US4989432A

公开(公告)日：1991-02-05

申请号：US465463

申请日：1990-01-16

Applicant: Phillip G. Taylor ,  Robert L. Bair

Inventor： Phillip G. Taylor ,  Robert L. Bair

IPC: B21D3/04

CPC classification number: B21D3/04

Abstract: A system and method for detecting the exact position of the contoured, cross rolls in a multiple roll rotary straightener including provision of selected transverse and axial surfaces on the roll frames themselves and means for detecting the exact position of these surfaces whereby the rotary straightener can be returned to a preselected operating condition.

公开(公告)号：US4640115A

公开(公告)日：1987-02-03

申请号：US752389

申请日：1985-07-03

Applicant: Franz-Josef Hartmann ,  Heinz Hefendehl

Inventor： Franz-Josef Hartmann ,  Heinz Hefendehl

IPC: B21B39/14 ,  B21D3/04 ,  B21D43/00

CPC classification number: B21D43/006 ,  B21B39/14 ,  B21D3/04

Abstract: In order to increase output of pipe straightening devices, there is provided a driving unit between a preparatory station for the pipes and a feeding station which advances the pipes from the preparatory station in axial direction one after the other in the feeding station. The feeding station includes a succession of rotation symmetrical guiding elements supported for rotation about axes which extend parallel to the feeding path for the pipes. The guiding bodies prevent striking of unbalanced pipes against the feeding unit and permit axial feeding of the pipes in a straightening station.

Abstract translation: 为了增加管道矫直装置的输出，在管道的预备站和供给站之间设置有驱动单元，该供给站在预备站中沿着轴向方向一个接一个地使进给站进给。 馈送站包括一系列旋转对称的引导元件，其被支撑用于绕平行于管道的馈送路径延伸的轴线旋转。 引导体防止不平衡管道撞击进给单元，并允许管道在矫直站中轴向馈送。

公开(公告)号：US4571821A

公开(公告)日：1986-02-25

申请号：US526719

申请日：1983-08-26

Applicant: William E. Pirl ,  John P. Vogeleer

Inventor： William E. Pirl ,  John P. Vogeleer

IPC: F22B1/16 ,  B21D3/05 ,  B23P19/02 ,  G21C17/003 ,  B23P19/00 ,  B21D3/04

CPC classification number: B23P19/022 ,  B21D3/05 ,  Y10T29/49352 ,  Y10T29/531 ,  Y10T29/53122 ,  Y10T29/53987

Abstract: The hollow tubular member or blank which is to serve as a sleeve for a corroded tube of the steam generator of a nuclear reactor plant and which is too long to be manipulated under the tube sheet of the reactor, is prebent into a shape such that it can be manipulated and is then progressively straightened under the tube sheet as it is progressively inserted into the tube. The straightener includes a plurality of grooved rolls mounted staggered and rotatable in a train. Each roll forms a channel engaging half of the periphery of the member. The contour of the engaging surface of each roll is the same as the contour of the member over half of its peripheral surface so that each roll mates with the member over half of its peripheral surface. The rolls are in frictional engagement with the member and advance the member while bending it so that the material of the member is stressed beyond its elastic limit oppositely to the stress beyond the elastic limit, which produced the bending, sufficiently to straighten the hollow member.

Abstract translation: 用作核反应堆设备的蒸汽发生器的腐蚀管的套管的中空管状构件或坯件预制成一种形状，使得它 可以被操纵，然后在管板逐渐插入管中之前逐渐矫直。 整流器包括多个在列车中交错并可旋转的带槽辊。 每个辊形成接合构件的周边的一半的通道。 每个辊的接合表面的轮廓与其外周表面的一半以上的构件的轮廓相同，使得每个辊与构件超过其外周表面的一半以上配合。 辊与构件摩擦接合并且在弯曲的同时使构件前进，使得构件的材料被超出其超出弹性极限的应力的弹性极限，从而产生弯曲，足以使中空构件拉直。

公开(公告)号：US4061008A

公开(公告)日：1977-12-06

申请号：US740735

申请日：1976-11-10

Applicant: Jury Lukich Semenenko

Inventor： Jury Lukich Semenenko

IPC: B21D3/04

CPC classification number: B21D3/04

Abstract: The invention relates to rolls of a skewed-roll machine. The rolls include a back-up roll and a pressure roll, having their axes extending at an angle to each other and at an angle to the trueing axis. The back-up roll has a biconcave profile, the portions of this roll, adjoining its ends, having the same hyperboloidal concavity with the degree of curvature providing for the engagement of the roll with the narrow central portion of the article being trued. The central portion of the back-up roll has hyperboloidal concavity with a degree of curvature to perform the trueing by bending the thickened end portion of the article being trued. The other roll, i.e. the pressure one, has a convexo-concave profile with similar hyperboloidal concave portions adjoining its ends, providing for the engagement of the roll with the thickened end of the article being trued, the roll further having a convex central portion as a projecting strip of a curvilinear profile, with a radial projection having a height ensuring a bending torque which, at the bending of the narrow central portion of the article being trued is short of the maximum permissible value of the bending torque but is not short of the minimum permissible bending torque required for trueing the thickened end of the article being trued, provided that the plastic torque of the bending resistance of the cross-section of the thickened end portion of the article being trued exceeds the plastic torque of the bending resistance of the cross-section of the narrow portion by not more than 10%.

Abstract translation: 本发明涉及一种倾斜辊机的辊。 辊包括支撑辊和压力辊，它们的轴线彼此成角度地延伸并且与成形轴成一定角度。 支撑辊具有双凸形轮廓，该辊的邻近其端部的部分具有相同的双曲面凹陷，其曲率提供用于将卷与被修整的制品的窄中心部分的接合。 支撑辊的中心部分具有曲率的双曲面凹陷，通过弯曲被修整的制品的加厚的端部来实现真实。 另一个辊，即压力辊，具有凹凸轮廓，具有与其端部相邻的相似的双曲面凹陷部分，提供辊与被修整的制品的加厚端的接合，辊还具有凸起的中心部分 具有曲线轮廓的突出条带，具有确保弯曲扭矩的高度的径向突起，所述弯曲扭矩在被修整的制品的窄中心部分的弯曲处短于弯曲扭矩的最大允许值，但不低于 用于校正制品的加厚端所需的最小允许弯曲扭矩，只要制品的加厚端部的横截面的抗弯曲性的塑性扭矩超过制品的弯曲阻力的塑性扭矩 狭窄部分的横截面不大于10％。

公开(公告)号：US3924433A

公开(公告)日：1975-12-09

申请号：US37768373

申请日：1973-07-09

Applicant: DRESSER IND

Inventor： MARTIN PAUL WARREN

IPC: B21D39/06 ,  B21D39/10 ,  B21D3/04 ,  B21D41/02

CPC classification number: B21D39/06 ,  B21D39/10

Abstract: A tube expander having a stop collar for limiting advance of a received tube end to a predetermined axial location relative to the expander rollers and their supporting cage. The collar is comprised of a plurality of individual L-shaped wire fingers circumferentially displaced about the cage. Each finger is spring biased radially inward against the cage periphery transversely to the path of tube advance. By this arrangement, the fingers are maintained in surface tracking relation against the rotating cage for collectively acting as a barrier against further advance by the tube end.

公开(公告)号：US3878702A

公开(公告)日：1975-04-22

申请号：US42220473

申请日：1973-12-06

Applicant: BROUARD MADARIAGA VALENTIN

Inventor： BROUARD MADARIAGA VALENTIN

IPC: B21D3/04 ,  B24B39/04 ,  B24D20060101 ,  B21B19/10

CPC classification number: B21D3/04 ,  B24B39/04

Abstract: Round bar straightener-polisher machine of the type which has a pair of rotary rollers the lower of which is fixed while the upper of which moves at will in a vertical direction so as to determine the distance between the rollers, which distance will be occupied by the bar to be treated. On each side of the bar are corresponding lateral guides, also movable at will according to the gage of the bar, in order to avoid horizontal movement thereof. The movement of the upper roller and that of the lateral guides is controlled by a single control, for which two symetrically arranged tables which solidly support the corresponding lateral guides, turn with the center in its lower part, this turning being caused by movement of the frame of the upper roller, which transmits its movement to two yokes, one for each table and guide, each yoke being linked to a lever solidly connected to a horizontal shaft, which has respective heel-pieces or projections at its opposite ends, articulately coupled to corresponding lugs, fixed to each table. At the anterior end of one of the guides and at the posterior end of the other guide, successive small rollers, whose active areas are always in the same plane as the edges facing the lateral guides, are provided.

Abstract translation: 具有一对旋转辊的圆形矫直机抛光机，该机器的下部固定，其上部沿垂直方向移动，以便确定辊子之间的距离，该距离将被 酒吧待处理。 在杆的每一侧上都是相应的横向引导件，也可以根据杆的量规随意移动，以避免水平移动。 上辊和横向导轨的运动通过单个控制来控制，对于该控制，两个对称布置的桌子固定地支撑相应的横向导向件，其中心在其下部部分中转动，这是由于 上辊的框架，其将其运动传递到两个轭，每个轭和引导件一个，每个轭连接到牢固地连接到水平轴的杠杆，该水平轴在其相对端具有相应的跟部或突起，铰接地 到相应的凸耳，固定在每张桌子上。 在其中一个引导件的前端和另一个引导件的后端处，提供了有效区域总是在与面向侧向引导件的边缘在同一平面内的连续的小滚子。