CN108971273B - A stable steel pipe straightening device - Google Patents

Abstract

The present application discloses a stable steel pipe straightening device, which relates to the field of steel pipe processing and manufacturing, and comprises: a first chassis, in which a pressure plate is arranged, on which at least two first straightening rollers are arranged, and the first straightening rollers are arranged in a straight line; a second chassis, which is arranged below the first chassis, on which second straightening rollers are arranged, and the second straightening rollers are arranged in the same number as the first straightening rollers; a direction adjustment device, which is arranged at the bottom of the pressure plate, and the direction adjustment device is arranged respectively corresponding to the first straightening rollers and the second straightening rollers; each of the direction adjustment devices is connected to each of the first straightening rollers or each of the second straightening rollers; a feed port; a vertical rail, which is symmetrically arranged before and after the pressure plate to achieve straightening of steel pipes of different diameters.

Description

A stable steel pipe straightening device

Technical Field

The present application relates to the field of steel pipe processing and manufacturing, and in particular to a stable steel pipe straightening device.

Background technique

In the process of processing and manufacturing steel pipes, it is necessary to straighten the steel pipes. After the diameter of the steel pipes is determined, they are straightened. Therefore, a steel pipe straightening device that can adapt to different diameters is needed. In the process of adjusting the steel pipe straightening device to adapt to the diameter of the steel pipe, it is achieved by the up and down movement of the steel pipe straightening roller. The left and right deviation that easily occurs in the process of moving the steel pipe straightening roller up and down becomes a major factor affecting the bending degree of the steel pipe. Therefore, a steel pipe straightening device is needed to solve the problem of left and right deviation in the process of moving the steel pipe straightening roller up and down.

For example, a Chinese invention patent with publication number CN106077164A discloses a steel pipe straightening machine, including a frame, wherein the frame is provided with a transverse straightening zone and a longitudinal straightening zone connected end to end, a driving device for driving and a control box for controlling; the transverse straightening zone includes a plurality of horizontally arranged transverse fixed wheels, a plurality of transverse sliding wheels whose spacing with the transverse fixed wheels is adjusted by sliding, and a plurality of transverse slideways for sliding the transverse sliding wheels; the longitudinal straightening zone includes a plurality of vertically arranged longitudinal fixed wheels, a plurality of longitudinal sliding wheels whose spacing with the longitudinal fixed wheels is adjusted by sliding, and a plurality of longitudinal slideways for sliding the longitudinal sliding wheels. The above-mentioned steel pipe straightening machine cannot adapt well to the straightening of steel pipes of different diameters, and cannot solve the problem of left and right deviation of the steel pipe straightening roller during the up and down movement.

Summary of the invention

One of the purposes of the present application is to provide a stable steel pipe straightening device to solve the problem of low bending degree of steel pipe straightening in the prior art.

To achieve one of the above-mentioned purposes, the embodiment of the present application adopts the following technical scheme: a stable steel pipe straightening device, comprising: a first chassis, a pressure plate is arranged in the first chassis, at least two first straightening rollers are arranged on the pressure plate, and the first straightening rollers are arranged in a straight line; a second chassis, the second chassis is arranged below the first chassis, and second straightening rollers are arranged on the second chassis, and the second straightening rollers are arranged in the same number as the first straightening rollers; a direction adjustment device, the direction adjustment device is arranged at the bottom of the pressure plate, and the direction adjustment device is respectively arranged corresponding to the first straightening roller and the second straightening roller; each of the direction adjustment devices is correspondingly connected to each of the first straightening rollers or each of the second straightening rollers; a feed port; a vertical rail, and the vertical rail is symmetrically arranged before and after the pressure plate.

In the above technical scheme, the embodiment of the present application sets a feed inlet to feed the steel pipe, and the first straightening roller and the second straightening roller straighten the steel pipe, and the relative directions of the first straightening roller and the second straightening roller are synchronously adjusted by the direction adjustment device, so as to realize the first straightening roller and the second straightening roller to adjust the curvature of the straightened steel pipe, and a pressure plate is arranged in the first chassis, and a direction adjustment device is arranged at the bottom of the pressure plate, and the pressure plate fixes the direction adjustment device so that the direction adjustment device can stably adjust the first straightening roller and the second straightening roller, and by setting the pressure plate and the vertical rail, the first straightening roller on the pressure plate can slide along the vertical rail to realize the straightening of steel pipes of different diameters.

Further, according to an embodiment of the present application, the direction adjustment device includes a rotating head, a connecting head is arranged at the bottom of the rotating head, the connecting head is connected to the first straightening roller or the second straightening roller, the top of the rotating head is fit and fixed with the lower part of the inner part of the outer ring, an inner ring is also arranged above the inner part of the outer ring, the inner ring is also fit and fixed with the rotating head, the rotating head is connected to a motor, the motor is fixed in a support plate and a fixed plate, the motor is fixed by the support plate and the fixed plate, the rotating head is adjusted by the motor to rotate with the outer ring and the inner ring, so that the connecting head adjusts the relative direction of the first straightening roller and the second straightening roller connected to it, thereby adjusting the required curvature of the steel pipe.

Furthermore, according to an embodiment of the present application, the rotating head is provided with a toothed disk, which is inwardly concave and toothed, and is provided with a plurality of tooth grooves. The lower part of the inner part of the outer ring is in an outwardly convex toothed shape, and the corresponding tooth grooves are provided with a plurality of teeth. The lower part of the inner ring is in an outwardly convex toothed shape, and the top of the rotating head is connected to the outer ring and the inner ring through the toothed disk. When the rotating head rotates, the connecting head adjusts the relative directions of the first straightening roller and the second straightening roller connected to it according to the cooperation between the toothed disk and the outer ring, thereby adjusting the required curvature of the steel pipe.

Further, according to an embodiment of the present application, a telescopic cylinder is provided on the first chassis, the telescopic cylinder is connected to the pressure plate, the telescopic cylinder is correspondingly arranged above the vertical rail, and the telescopic cylinder pushes the pressure plate to move on the vertical rail.

Further, according to the embodiment of the present application, a slider is provided on the vertical rail, and gussets are provided on both sides of the slider and the vertical rail. One side of the gusset plate is movably buckled with the vertical rail, and a long shaft is inserted into the other side of the gusset plate. The long shaft passes through the slider to connect the gusset plate with the slider. A connecting piece is provided between the slider and the vertical rail, and the connecting piece is fixed to the slider by a second screw. The gusset plate is connected to the slider by a third screw. The slider is arranged to be easy to slide on the vertical rail, and the gusset plate buckles the slider and the vertical rail so that the slider can slide stably. The gusset plate and the slider are fixed by the long axis so that they can slide in unison.

Furthermore, according to an embodiment of the present application, a "convex" shaped slot is provided on one side of the vertical rail corresponding to the slider, and rectangular slots are provided at both ends of the other side. The inner side of the buckle plate is a trapezoidal buckle, which engages with the rectangular slots on both sides of the vertical rail through the trapezoidal buckle, so that the buckle plate can more stably engage with the slider and is not prone to displacement.

Furthermore, according to the embodiment of the present application, the connecting piece is in a "convex" shape, and the connecting piece engages with the "convex" groove of the vertical rail. The connecting piece allows the slider to slide up and down on the vertical rail only, thereby preventing the slider from deviating left and right during the sliding process.

Furthermore, according to the embodiment of the present application, the pressure plate is welded to the slider and the buckle plate, and the pressure plate can move with the slider, so that the pressure plate can stably slide along the vertical rail with the slider under the action of the buckle plate.

Furthermore, according to an embodiment of the present application, the stable steel pipe straightening device also includes a control box suitable for controlling the operation of the stable steel pipe straightening device.

The second purpose of the present application is to provide a stable steel pipe straightening device to solve the problem of left and right deviation of the steel pipe straightening roller during the up and down movement in the prior art.

To achieve the second of the above-mentioned purposes, the embodiment of the present application adopts the following technical scheme: a stable steel pipe straightening device, comprising: a first chassis, a pressure plate is arranged in the first chassis, at least two first straightening rollers are arranged on the pressure plate, and the first straightening rollers are arranged in a straight line; a second chassis, the second chassis is arranged below the first chassis, and second straightening rollers are arranged on the second chassis, and the second straightening rollers and the first straightening rollers are arranged to be the same number; a direction adjustment device, the direction adjustment device is respectively arranged corresponding to the first straightening roller and the second straightening roller; each direction adjustment device is correspondingly connected to each first straightening roller or each second straightening roller; a feed port; a vertical rail, the vertical rail is symmetrically arranged before and after the pressure plate; an elastic device, the elastic device is arranged on both sides of the pressure plate.

In the above technical scheme, the embodiment of the present application sets a feed inlet to feed the steel pipe, and the first straightening roller and the second straightening roller straighten the steel pipe. The relative directions of the first straightening roller and the second straightening roller are synchronously adjusted by the direction adjustment device to achieve the first straightening roller and the second straightening roller to adjust the curvature of the straightened steel pipe. By setting a pressure plate and a vertical rail, the first straightening roller on the pressure plate can slide along the vertical rail to achieve straightening of steel pipes of different diameters. The elastic device is used to prevent the first straightening roller from descending too fast and directly pressing the steel pipe to cause deformation of the steel pipe. At the same time, an elastic device is set to prevent the pressure plate from shifting left and right during the up and down movement.

Further, according to an embodiment of the present application, the elastic device includes a long plate, which is horizontally fixed on the inner side of the first chassis, a lower shell is provided on the upper side of the long plate, an upper shell is provided on the lower side of the pressure plate, and a spring is provided between the upper shell and the lower shell. The spring prevents the first straightening roller from descending too quickly and directly pressing against the steel pipe, causing deformation of the steel pipe. The upper shell and the lower shell are used to protect the spring's expansion and contraction process while limiting the left and right deviation of the spring.

Furthermore, according to an embodiment of the present application, the elastic device also includes a through tube, which is fixed on the long plate. A through hole is provided in the through tube, which is vertically upward. A vertically upward straight rod is arranged in the through hole. The straight rod passes through the pressure plate and extends out, and is fixed on the pressure plate. The straight rod is fixed in the vertically upward through hole of the through tube, and the straight rod fixes the pressure plate, so that the pressure plate is restricted by the straight rod during the up and down movement, and will not deviate left or right.

Furthermore, according to an embodiment of the present application, the portion of the top of the straight rod extending out of the pressure plate is provided with threads, a nut is fixed by the threads, and a gasket is also fixed between the nut and the straight rod, so that the straight rod can stably fix the pressure plate.

Furthermore, according to an embodiment of the present application, an end cover is also provided at the top end of the straight rod, and the end cover is fixed to the pressure plate by a fourth screw. A sleeve is provided outside the portion of the straight rod located under the pressure plate, and the sleeve protects the movement of the straight rod.

The third object of the present application is to provide a method for using a stable steel pipe straightening device corresponding to the first and second objects above, comprising the following steps:

a) starting the stable steel pipe straightening device through the control box;

b) The steel pipe is fed through the feed port;

c) The telescopic cylinder pushes the pressing plate down along the vertical rail, thereby pushing the first straightening roller downward to contact the steel pipe;

d) a direction adjustment device for rotating and adjusting the relative directions of the first straightening roller and the second straightening roller;

f) The steel pipe is rolled and straightened by the first straightening roller and the second straightening roller.

Further, according to an embodiment of the present application, when executing step c), when the pressure plate slides downward, the spring is pressed downward at the same time, and the straight rod moves vertically downward in the vertical through hole of the through pipe.

Further, according to an embodiment of the present application, when executing step d), the direction adjustment device controls the rotation of the motor through the control box, thereby driving the rotating head to adjust the relative direction of the first straightening roller and the second straightening roller.

In the above technical scheme, the present application is provided with a toothed disk through the rotating head, and the toothed disk is in a toothed shape concave inwardly and is provided with a plurality of tooth grooves. The lower part of the inner ring is in a toothed shape convex outwardly. The top of the rotating head is connected with the outer ring and the inner ring through the toothed disk. When the rotating head is rotated by controlling the control box, the toothed disk and the outer ring are rotated in coordination, so that the connecting head adjusts the relative directions of the first straightening roller and the second straightening roller connected thereto, thereby adjusting the required curvature of the steel pipe. By setting a vertical rail, the pressure plate drives the first straightening roller thereon to slide along the vertical rail, so as to realize straightening of steel pipes of different diameters. The inner side of the buckle plate is a trapezoidal buckle, and the trapezoidal buckle is engaged with the rectangular notches on both sides of the vertical rail to make the buckle plate more stable. The slider is buckled, and it is not easy to deviate when the slider moves. The connecting piece is "convex" in shape, and the connecting piece engages with the "convex" groove of the vertical rail. The connecting piece allows the slider to slide up and down on the vertical rail only, avoiding the left and right deviation of the slider during the sliding process, thereby solving the problem of stable straightening of steel pipes of different diameters; an elastic device is provided, in which a spring buffers the descending process of the first straightening roller, and the upper shell and the lower shell are provided to protect the spring during the expansion and contraction process while limiting the left and right deviation of the spring. The straight rod is fixed in the vertical upward through hole of the through pipe, and the straight rod fixes the pressure plate, so that the pressure plate is restricted by the straight rod during the up and down movement, and will not deviate left and right, thereby solving the problem of left and right deviation of the first straightening roller during the up and down movement.

BRIEF DESCRIPTION OF THE DRAWINGS

The present application is further described below in conjunction with the accompanying drawings and embodiments.

FIG1 is a front view of a stable steel pipe straightening device of the present application.

FIG. 2 is a schematic diagram of the internal structure of the stable steel pipe straightening device shown in FIG. 1 .

FIG3 is a schematic diagram of the internal structure of a first chassis of a stable steel pipe straightening device of the present application.

FIG. 4 is a front view of a direction adjustment device for a stable steel pipe straightening device of the present application.

FIG. 5 is a cross-sectional view of the direction adjustment device shown in FIG. 4 .

FIG. 6 is a detailed schematic diagram of the direction adjustment device shown in FIG. 4 after being disassembled.

FIG. 7 is a schematic structural diagram of a vertical rail of a stable steel pipe straightening device of the present application.

FIG. 8 is a detailed schematic diagram of the disassembled vertical rail shown in FIG. 7 .

FIG. 9 is a schematic structural diagram of a slider of a stable steel pipe straightening device of the present application.

FIG. 10 is a schematic structural diagram of a connecting member of a stable steel pipe straightening device of the present application.

FIG. 11 is a front view of an elastic device for stabilizing a steel pipe straightening device according to the present application.

FIG. 12 is a cross-sectional view of the elastic device shown in FIG. 11 .

FIG. 13 is a schematic diagram of the working state of a stable steel pipe straightening device of the present application.

In the attached figure

100, first chassis 110, pressing plate 111, vertical rail

112. Slider 113. Clamp plate 114. Connector

115. Long axis 116. Second screw 117. Third screw

120, telescopic cylinder 200, second chassis 300, feed port

400, control box 500, first straightening roller 600, second straightening roller

700, elastic device 710, long board 720, lower shell

730, spring 740, through pipe 750, straight rod

751, nut 752, washer 753, fourth screw

760, housing 770, upper housing 780, end cap

800, direction adjustment device 810, rotating head 811, connecting head

812, toothed disc 820, outer ring 830, inner ring

840, ball bearing 850, fixing plate 860, support plate

870, first screw 880, motor

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention are further described in detail in combination with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not used to limit the embodiments of the present invention. In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

Embodiment 1:

As shown in Fig. 1-3, a stable steel pipe straightening device comprises: a first chassis 100, wherein the first chassis 100 is provided with at least two first straightening rollers 500, and the first straightening rollers 500 are arranged in a straight line to straighten the steel pipe; a second chassis 200, wherein the second chassis 200 is provided with second straightening rollers 600, and the second straightening rollers 600 are provided with the same number as the first straightening rollers 500; a direction adjusting device 800, wherein the direction adjusting device 800 is respectively provided corresponding to the first straightening roller 500 and the second straightening roller 600; and each of the direction adjusting devices 800 is connected to each of the first straightening rollers 500 or each of the second straightening rollers 600. 00, a pressing plate 110 is arranged in the first chassis 100, and the direction adjustment device 800 is arranged at the bottom of the pressing plate 110, and the pressing plate 110 fixes the direction adjustment device 800, so that the direction adjustment device 800 can stably adjust the first straightening roller 500 and the second straightening roller 600; a feed port 300; the stable steel pipe straightening device also includes a control box 400, which is suitable for controlling the operation of the stable steel pipe straightening device; by setting the feed port 300 to feed the steel pipe, the first straightening roller 500 and the second straightening roller 600 straighten the steel pipe, and the relative directions of the first straightening roller 500 and the second straightening roller 600 are synchronously adjusted by the direction adjustment device 800, so as to realize the adjustment of the straightening curvature of the steel pipe by the first straightening roller 500 and the second straightening roller 600.

Specifically, as shown in Figures 4-6, the direction adjustment device 800 includes a rotating head 810, a connecting head 811 is provided at the bottom of the rotating head 810, and the connecting head 811 is connected to the first straightening roller 500 or the second straightening roller 600, the top of the rotating head 810 is fitted and fixed to the lower part of the inner part of the outer ring 820, and an inner ring 830 is also provided above the inner part of the outer ring 820, and the inner ring 830 is also fitted and fixed to the rotating head 810, and the rotating head 810 is connected to a motor 880, and the motor 880 is fixed in the support plate 860 and the fixed plate 850; the rotating head 810 is provided with a toothed disk 812, and the toothed disk 812 is in an inwardly concave toothed shape and is provided with a plurality of tooth grooves, the lower part of the inner part of the outer ring 820 is in an outwardly convex toothed shape, and a plurality of teeth are provided corresponding to the tooth grooves, and the lower part of the inner ring 830 is outwardly The rotating head 810 has a convex tooth shape, and the top of the rotating head 810 is connected to the outer ring 820 and the inner ring 830 through a toothed disc 812. When the rotating head 810 rotates, the toothed disc 812 cooperates with the outer ring 820 to achieve the connection head 811 to adjust the relative directions of the first straightening roller 500 and the second straightening roller 600 connected thereto, thereby adjusting the required curvature of the steel pipe; the fixed plate 850 is fixed to the bottom of the support plate 860 by setting a first screw 870, and the first screw 870 is at least two, so that the fixed plate 850 and the support plate 860 are stably fixed, and the motor 880 can be better fixed; the bottom of the fixed plate 850 is provided with ball bearings 840 around, and the ball bearings 840 are fixed on the inner ring 830, so that the inner ring 830 can be more easily rotated through the rotating head 810, and the wear of the fixed plate 850 and the inner ring 830 when rotating is reduced.

Embodiment 2:

As shown in FIG. 2 and FIG. 7, a stable steel pipe straightening device further includes, on the basis of the first embodiment: a vertical rail 111, the vertical rail 111 is symmetrically arranged in front and behind the pressing plate 110; a telescopic cylinder 120 is arranged on the first chassis 100, the telescopic cylinder 120 is connected to the pressing plate 110, and the telescopic cylinder 120 is correspondingly arranged above the vertical rail 111. By arranging the pressing plate 110 and the vertical rail 111, the first straightening roller 500 on the pressing plate 110 can slide along the vertical rail 111, and the telescopic cylinder 120 pushes the pressing plate 110 to move on the vertical rail 111, so as to realize the straightening of steel pipes of different diameters;

Specifically, as shown in Figures 8-10, a slider 112 is provided on the vertical rail 111, and buckle plates 113 are provided on both sides of the slider 112 and the vertical rail 111. One side of the buckle plate 113 is movably buckled with the vertical rail 111, and a long shaft 115 is inserted into the other side of the buckle plate 113. The long shaft 115 penetrates the slider 112 to connect the buckle plate 113 with the slider 112. A connecting member 114 is provided between the slider 112 and the vertical rail 111, and the connecting member 114 is fixed to the slider 112 by a second screw 116. The buckle plate 113 is connected to the slider 112 by a third screw 117; the vertical rail 111 is provided with a "convex" notch on one side corresponding to the slider 112, and two ends of the other side are provided A rectangular notch is provided, and the inner side of the buckle plate 113 is a trapezoidal buckle, which engages with the rectangular notches on both sides of the vertical rail 111 through the trapezoidal buckle, so that the buckle plate 113 can buckle the slider 112 more stably and is not easy to deviate; the connecting member 114 is "convex" shaped, and the connecting member 114 engages with the "convex" notch of the vertical rail 111. The connecting member 114 is fixed to the slider 112 by a second screw 116, so that the slider 112 can only slide up and down on the vertical rail 111, avoiding the left and right deviation of the slider 112 during the sliding process; the pressing plate 110 is welded to the slider 112 and the buckle plate 113, and the pressing plate 110 can move with the slider 112, so that the pressing plate 110 can stably slide along the vertical rail 111 with the slider 112 under the action of the buckle plate 113.

Embodiment three:

As shown in FIG. 2 and FIG. 11 , a stable steel pipe straightening device further includes, on the basis of the second embodiment: an elastic device 700, the elastic device 700 being arranged on both sides of the pressing plate 110, and the first straightening roller 500 is buffered by the elastic device 700 when it descends, so as to prevent it from directly pressing against the steel pipe too quickly and causing deformation of the steel pipe;

Specifically, as shown in FIG. 12 , the elastic device 700 includes a long plate 710, the long plate 710 is horizontally fixed to the inner side of the first chassis 100, a lower shell 720 is arranged on the upper side of the long plate 710, an upper shell 770 is arranged on the lower side of the pressure plate 110, and a spring 730 is arranged between the upper shell 770 and the lower shell 720; the elastic device 700 also includes a through pipe 740, the through pipe 740 is fixed to the long plate 710, a through hole is provided in the through pipe 740, the through hole is vertically upward, a straight rod 750 is arranged vertically upward in the through hole, the straight rod 750 passes through the pressure plate 110 and extends out, and is fixed to the pressure plate 110, and is fixed to the through pipe by the straight rod 750 The straight rod 750 is in the vertical upward through hole 740, and the straight rod 750 fixes the pressure plate 110, so that the pressure plate 110 is restricted by the straight rod 750 during the up and down movement, and will not deviate left and right; the part of the top of the straight rod 750 that extends out of the pressure plate 110 is provided with a thread, and a nut 751 is fixed by the thread, and a gasket 752 is also fixed between the nut 751 and the straight rod 750, so that the straight rod 750 can stably fix the pressure plate 110; the top of the straight rod 750 is also provided with an end cover 780, and the end cover 780 is fixed to the pressure plate 110 by a fourth screw 753, and the part of the straight rod 750 located under the pressure plate 110 is provided with a sleeve 760, and the sleeve 760 protects the movement of the straight rod 750.

As shown in FIGS. 1-13 , the embodiment of the present application discloses a method for using a stable steel pipe straightening device based on the third embodiment, comprising the following steps:

a) starting the stable steel pipe straightening device through the control box 400;

b) The steel pipe is fed through the feed port 300;

c) the telescopic cylinder 120 pushes the pressing plate 110 to slide down along the vertical rail 111, thereby pushing the first straightening roller 500 to move downward to contact the steel pipe;

d) the direction adjustment device 800 rotates to adjust the relative directions of the first straightening roller 500 and the second straightening roller 600;

f) The steel pipe is rolled and straightened by the first straightening roller 500 and the second straightening roller 600.

Specifically, when executing step c), the pressing plate 110 slides down along the vertical rail 111 in the following process: the connecting block slides in the "convex" groove of the vertical rail 111, and the buckle plate 113 engages with the trapezoidal grooves on both sides of the vertical rail 111, so that the slider 112 drives the pressing plate 110 to slide up and down the vertical rail 111.

Specifically, when executing step c), when the pressing plate 110 slides downward, the spring 730 is pressed downward at the same time, and the straight rod 750 moves vertically downward in the vertical through hole of the through pipe 740.

Specifically, when executing step d), the direction adjustment device 800 controls the motor 880 to rotate through the control box 400, thereby driving the rotating head 810 to adjust the relative direction of the first straightening roller 500 and the second straightening roller 600.

Although the above describes the illustrative specific embodiments of the present invention so that those skilled in the art can understand the present invention, the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, all inventions and creations using the concepts of the present invention are protected.

Claims (10)

1. A stable steel pipe straightening device, comprising: A first chassis, wherein a pressing plate is disposed in the first chassis, and at least two first straightening rollers are disposed on the pressing plate, and the first straightening rollers are arranged in a straight line; a second chassis, the second chassis being arranged below the first chassis, the second chassis being provided with second straightening rollers, the second straightening rollers being arranged in the same number as the first straightening rollers; A direction adjustment device, the direction adjustment device is arranged at the bottom of the pressing plate, and the direction adjustment device is arranged corresponding to the first straightening roller and the second straightening roller respectively; each of the direction adjustment devices is connected to each of the first straightening rollers or each of the second straightening rollers; A feed inlet; Vertical rails, the vertical rails are symmetrically arranged in front and behind the pressing plate; an elastic device, which is arranged on both sides of the pressure plate, and is used to buffer the descent of the first straightening roller, wherein the elastic device comprises a long plate, which is horizontally fixed on the inner side of the first chassis, a lower shell is arranged on the upper side of the long plate, an upper shell is arranged on the lower side of the pressure plate, and a spring is arranged between the upper shell and the lower shell; The direction adjustment device includes a rotating head, a connecting head is arranged at the bottom of the rotating head, the connecting head is connected to the first straightening roller or the second straightening roller, the top of the rotating head is fitted and fixed to the lower part of the inner part of the outer ring, an inner ring is also arranged above the inner part of the outer ring, the inner ring is also fitted and fixed to the rotating head, the rotating head is connected to a motor, and the motor is fixed in the support plate and the fixed plate; the rotating head is provided with a toothed disk, the toothed disk is in an inwardly concave toothed shape, and is provided with a plurality of tooth grooves, the lower part of the inner part of the outer ring is in an outwardly convex toothed shape, and a plurality of teeth are arranged corresponding to the tooth grooves, and the lower part of the inner ring is in an outwardly convex toothed shape The top of the rotating head is connected with the outer ring and the inner ring through a toothed disk. When the rotating head rotates, the connecting head adjusts the relative directions of the first straightening roller and the second straightening roller connected to it according to the cooperation between the toothed disk and the outer ring, thereby adjusting the required curvature of the steel pipe; the fixed plate is fixed to the bottom of the supporting plate by setting a first screw, and the first screw is at least two, so that the fixed plate and the supporting plate are stably fixed, and the motor can be better fixed; ball bearings are arranged around the bottom of the fixed plate, and the ball bearings are fixed on the inner ring, so that the inner ring can be more easily rotated by the rotating head, and the wear of the fixed plate and the inner ring during rotation is reduced. 2. A stable steel pipe straightening device according to claim 1, wherein a telescopic cylinder is provided on the first chassis, the telescopic cylinder is connected to the pressure plate, and the telescopic cylinder is correspondingly arranged above the vertical rail. 3. A stable steel pipe straightening device according to claim 1, wherein a slider is provided on the vertical rail, and gussets are provided on both sides of the slider and the vertical rail, one side of the gusset plate is movably engaged with the vertical rail, and a long axis is inserted into the other side of the gusset plate, and the long axis passes through the slider to connect the gusset plate with the slider, a connecting piece is provided between the slider and the vertical rail, the connecting piece is fixed to the slider by a second screw, and the gusset plate is connected to the slider by a third screw. 4. A stable steel pipe straightening device according to claim 3, wherein a "convex"-shaped notch is provided on one side of the vertical rail corresponding to the sliding block, and rectangular notches are provided at both ends of the other side, and the inner side of the buckle plate is a trapezoidal buckle, through which the rectangular notches on both sides of the vertical rail are engaged. 5. A stable steel pipe straightening device according to claim 3, wherein the connecting piece is in a "convex" shape, and the connecting piece engages with the "convex" groove of the vertical rail. 6. A stable steel pipe straightening device according to claim 3, wherein the pressure plate is welded to the slider and the gusset plate, and the pressure plate can move with the slider. 7. A stable steel tube straightening device according to any one of claims 1 to 6, wherein the stable steel tube straightening device further comprises a control box suitable for controlling the operation of the stable steel tube straightening device. 8. A method for using the stable steel pipe straightening device according to any one of claims 1 to 7, comprising the following steps: a) starting the stable steel pipe straightening device through the control box; b) The steel pipe is fed through the feed port; c) The telescopic cylinder pushes the pressing plate down along the vertical rail, thereby pushing the first straightening roller downward to contact the steel pipe; d) a direction adjustment device for rotating and adjusting the relative directions of the first straightening roller and the second straightening roller; f) The steel pipe is rolled and straightened by the first straightening roller and the second straightening roller. 9. The method for using a stable steel pipe straightening device according to claim 8 further comprises the following steps: when executing step c), when the pressure plate slides downward, the spring is pressed downward at the same time, and the straight rod moves vertically downward in the vertical through hole of the through pipe. 10. The method for using the stable steel pipe straightening device according to claim 8 further comprises the following steps: When executing step d), in the direction adjustment device, the motor is controlled to rotate by the control box, thereby driving the rotating head to adjust the relative direction of the first straightening roller and the second straightening roller.