CN114210771B - Straightening device and section straightening machine - Google Patents
Straightening device and section straightening machine Download PDFInfo
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- CN114210771B CN114210771B CN202111399829.XA CN202111399829A CN114210771B CN 114210771 B CN114210771 B CN 114210771B CN 202111399829 A CN202111399829 A CN 202111399829A CN 114210771 B CN114210771 B CN 114210771B
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- rotating disc
- straightening
- profile
- section bar
- axial direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
Abstract
The invention discloses a straightening device, comprising: the first rotating disc and the second rotating disc can be driven to rotate; the axial directions of the first rotating disc and the second rotating disc are parallel to the axial direction of the section bar, and the first rotating disc and the second rotating disc simultaneously press the surface of the section bar moving along the axial direction; the outer ring surface of the first turntable is sleeved with an elastic wheel which can be extruded by the first turntable and the section bar and is used for pre-straightening the section bar and driving the section bar to rotate around the axis of the section bar; the second rotating disc is used for re-straightening the section. The invention also discloses a profile straightening machine. The invention has the advantages that the profile can be protected from being damaged while being straightened, and the invention is suitable for longer round tubular profiles.
Description
Technical Field
The invention relates to a straightening device and a section straightening machine, which are applied to the technical field of section processing.
Background
The straightening machine is equipment for straightening metal sections, bars, pipes, wires and the like. The straightening machine extrudes bars and the like through the straightening rollers to change the straightness, generally comprises two rows of straightening rollers with different numbers, is more suitable for products with higher structural strength, such as steel pipes and the like, and has the hollow structural characteristics to ensure that the surface strength of the sections is weaker and the sections are easy to break, fracture and the like in the straightening process.
For example, patent application with publication number CN103691771B in the prior art discloses an aluminum profile straightening device, which comprises a support, the support has two slide rails, and further comprises a main straightening carriage and an auxiliary straightening carriage which are arranged on the slide rails, the main straightening carriage comprises a carriage body, the front end of the carriage body is provided with a material clamping port for extending into the aluminum profile, the carriage body is provided with a clamping mechanism for clamping the aluminum profile and a driving mechanism for driving the clamping mechanism, the clamping mechanism comprises two sections of oblique slide ways which are arranged at the front end of the carriage body and are symmetrical up and down, and engaging blocks which are respectively arranged on the two sections of oblique slide ways; the driving mechanism comprises a driving gear and a driven gear which are arranged in the vehicle body and are meshed with each other, an eccentric rod is arranged on the driving gear and the driven gear, a transmission rod is arranged between the eccentric rod and the occlusion block, one end of the transmission rod is hinged to the eccentric rod, and the other end of the transmission rod is hinged to the occlusion block; the front end of the car body is also provided with an isolation mechanism for avoiding direct contact between hands and the clamping mechanism, and the structure of the auxiliary straightening car is the same as that of the main straightening car.
This prior art can effectively stretch the straightening to the aluminium alloy in order to eliminate the crooked and distortion of aluminium alloy, and it is inhomogeneous to eliminate the stress of aluminium alloy along the cross-section direction simultaneously, operates high-efficiently, and straightening effect is good. When the straightening device is used for straightening the round pipe-shaped section bar, the following defects exist:
the structural shape of the cross section of the sectional material is complex, so that the structural strength of different positions on the surface of the sectional material has certain difference, the phenomenon that the stress of the sectional material is uneven can be caused when the sectional material is stretched, the straightening effect is influenced, and the part with weaker strength is easy to damage. In addition, the straightening effect of the straightening device is reduced for long profiles.
Disclosure of Invention
The invention aims to provide a straightening device and a section straightening machine, which can straighten a section and simultaneously protect the section from being damaged and are suitable for a longer round tubular section.
The invention is realized by the following technical scheme.
A straightening apparatus comprising: the first rotating disc and the second rotating disc can be driven to rotate; the axial directions of the first rotating disc and the second rotating disc are parallel to the axial direction of the section bar, and the first rotating disc and the second rotating disc simultaneously press the surface of the section bar moving along the axial direction; the outer ring surface of the first turntable is sleeved with an elastic wheel which can be extruded by the first turntable and the section bar and is used for pre-straightening the section bar and driving the section bar to rotate around the axis of the section bar; the second rotating disc is used for re-straightening the section.
As a further improvement of the invention, the outer ring surface of the elastic wheel is provided with a plurality of straight grooves which are formed inwards in a concave mode and are parallel to the axial direction of the elastic ring.
As a further improvement of the present invention, the outer ring surface of the first rotating disk has a plurality of annular grooves arranged in parallel in the axial direction of the first rotating disk; the elastic wheel comprises a plurality of elastic rings which correspond to the annular grooves one to one, and the elastic rings are embedded in the annular grooves.
As a further improvement of the invention, the diameter of the second rotating disk is larger than that of the elastic wheel.
As a further improvement of the invention, the first rotating disc and the second rotating disc can be driven to move up and down.
As a further improvement of the invention, the lifting device also comprises a mounting rack, a first lifting cylinder and a second lifting cylinder which are arranged on the mounting rack; the bottom ends of the piston rods of the first lifting cylinder and the second lifting cylinder are respectively and fixedly connected with a first mounting seat and a second mounting seat; the first mounting seat and the second mounting seat are respectively provided with a first driving motor and a second driving motor; the first driving motor and the second driving motor are respectively connected with the first turntable and the second turntable through transmission shafts.
As a further improvement of the invention, at least one first guide cylinder and at least one second guide cylinder are vertically arranged on the mounting frame, a first guide rod and a second guide rod are respectively inserted into the first guide cylinder and the second guide cylinder in a sliding manner, and the first guide rod and the second guide rod are respectively and fixedly connected with the first mounting seat and the second mounting seat.
As a further improvement of the present invention, the first mounting seat and the second mounting seat are respectively provided with a first bearing seat and a second bearing seat, and the first bearing seat and the second bearing seat are respectively sleeved on transmission shafts of the first rotating disk and the second rotating disk.
A profile straightening machine comprises the straightening device and a conveying device; the conveying device comprises a traction mechanism for driving the section bar to move along the axial direction of the section bar and a guide mechanism for keeping the section bar in the axial direction and guiding the section bar to the straightening device.
The invention has the beneficial effects that:
the first rotary table and the second rotary table are used for pre-straightening and re-straightening the section, so that excessive buffering exists in the straightening process, the section is protected, and the surface of the section is not easy to damage; in addition, the first rotating disc and the second rotating disc keep the positions to continuously straighten the passing part of the section bar, so the straightening device is particularly suitable for long section bars.
Drawings
The preferred embodiments of the present invention will hereinafter be described in detail to facilitate understanding of the objects and advantages of the invention, with reference to the accompanying drawings, in which:
FIG. 1 is a side view of a section leveler in embodiment 1;
FIG. 2 is a schematic sectional view of a first turntable in accordance with embodiment 1;
FIG. 3 is a front view of a third driving motor and a traction roller in embodiment 1;
FIG. 4 is a front view of a fourth driving motor and a traction roller in embodiment 1;
FIG. 5 is a cross-sectional view of a traction drum of embodiment 1;
fig. 6 is a front view of the traction mechanism of embodiment 1;
FIG. 7 is a side view of the section leveler of example 2.
Detailed Description
The invention is explained in more detail below with reference to the drawings and exemplary embodiments.
The terms upper, lower, left, right, front, rear, front, back, top, bottom and the like in the description, or which may be referred to in the specification, are defined with respect to the configurations shown in the drawings, and the words "inner" and "outer" refer to the relative concepts toward and away from the geometric center of a particular component, respectively, and thus may be changed accordingly depending on the position in which it is located and the state of use. Therefore, these and other directional terms should not be construed as limiting terms.
Example 1:
referring to fig. 1 to 6, a profile straightener comprises a straightening device and a conveying device, wherein the conveying device is used for drawing and conveying a profile to be straightened along the axial direction of the profile, and the straightening device is used for continuously straightening the part of the profile passing through until the profile completely passes through.
The straightening target object straightened by the profile straightener of the present embodiment is a profile having a circular cross section, and the straightening device of the profile straightener of the present embodiment does not move horizontally in operation but pulls the profile to move by the conveyor device, so that the profile straightener of the present embodiment is particularly suitable for a profile having a long length.
The straightening device comprises a first rotating disc 11 and a second rotating disc 12, wherein both the first rotating disc 11 and the second rotating disc 12 can be driven to rotate, and the axial directions of the first rotating disc 11 and the second rotating disc 12 are parallel to the axial direction of the profile. When straightening the profile, the first rotating disc 11 and the second rotating disc 12 are pressed on the surface of the profile. Functionally, the first rotating disc 11 and the second rotating disc 12 are distinguished, and the section firstly contacts the first rotating disc 11 and then contacts the second rotating disc 12 under the traction conveying of the conveying device, namely the first rotating disc 11 pre-straightens the section, and the second rotating disc 12 re-straightens the section.
Two defects can be caused by two structural characteristics of the profile, the hollow structure causes that the compressive load on the surface of the profile is lower, and the structural shape of the cross section is more complex, so that the structural strength of the surface of the profile is different, and the pre-straightening strength of the profile by the first rotary disc 11 needs to be controlled. Therefore, the elastic wheel 13 is sleeved on the outer ring surface of the first rotating disk 11, and the elastic wheel 13 is made of elastic material, such as rubber, latex, natural rubber and other rubber materials. The elastic wheel 13 can be extruded and deformed by the outer ring surface of the first rotating disc 11 and the surface of the profile, the elastic supporting force applied by the elastic wheel 13 to the surface of the profile pre-straightens the profile, and because the first rotating disc 11 is driven to rotate, the static friction force generated between the elastic wheel 13 and the surface of the profile along the circumferential direction of the profile can drive the profile to rotate around the axis of the profile. Certainly, the rotating speed of the first rotating disc 11 and the speed of the conveying device for drawing and conveying the profile need to be controlled, theoretically, the rotating speed of the first rotating disc 11 needs to be increased, and the speed of the conveying device for drawing and conveying the profile needs to be decreased, so that the coverage rate of the elastic wheel 13 for expanding the contact area with the surface of the profile is increased, the time is shortened, but the two speeds need to be set reasonably according to the practical application condition in order to avoid unstable rotation of the profile and the efficiency of profile straightening caused by overhigh rotating speed of the first rotating disc 11.
After the profile is pre-straightened by the first rotary disc 11, the profile passes through the second rotary disc 12, the second rotary disc 12 presses on the surface of the profile to apply rigid supporting force to the profile, so that the profile is straightened again, and finally, the portion of the profile passing through the second rotary disc 12 is completely straightened. Through the pre-straightening of the elastic supporting force and the re-straightening of the rigid supporting force, a buffer transition process is integrally performed on the straightening of the profile, the situation that the profile is damaged in the straightening process due to the fact that the surface compression load is weak and the surface strength is different is avoided, and the effect of protecting the profile is achieved.
Since the profile is pulled by the conveying device to move in the axial direction, the elastic ring 131 of the first rotating disc 11 and the profile move relatively in the axial direction, so that a dynamic friction force in the axial direction of the profile is generated between the elastic wheel 13 and the surface of the profile, and the dynamic friction force causes the profile to vibrate, i.e. the stability of the profile movement is reduced. The dynamic friction force is proportional to the elastic supporting force applied by the elastic wheel 13 to the surface of the profile, that is, the higher the partial bending degree of the profile passing through the elastic wheel 13 is, the greater the dynamic friction force is, and the poorer the stability of the profile moving is. Based on this, the outer ring surface of the elastic wheel 13 is provided with a plurality of straight grooves 13-1 which are concavely formed inwards and are parallel to the axial direction of the elastic wheel 13, the straight grooves 13-1 are arranged at equal intervals, and the arrangement and the directionality of the straight grooves 13-1 can reduce the dynamic friction force, so that the stability of the profile moving along the axial direction is improved.
It should be noted that the dynamic friction force also causes the elastic wheel 13 to be distorted along the moving direction of the section bar, thereby causing the elastic wheel 13 to have a tendency to be separated from the outer ring surface of the first rotating disc 11. Therefore, the outer circumferential surface of the first rotary disk 11 has a plurality of annular grooves 11-1 arranged in parallel in the axial direction of the first rotary disk 11. The elastic wheel 13 comprises a plurality of elastic rings 131, each elastic ring 131 is embedded in the corresponding annular groove 11-1, which is equivalent to increase the contact area between the elastic wheel 13 and the outer ring surface of the first rotating disc 11, so that the strength of the elastic wheel 13 sleeved on the first rotating disc 11 is enhanced, and the effect of reducing the distortion deformation to the moving direction of the section bar is achieved. In addition, the elastic ring 131 can be replaced independently after aging and damage, and replacement cost is reduced.
In order to further reduce the damage to the surface of the profile caused by rigid supporting force of the second rotating disc 12 in the secondary straightening process, the diameter of the second rotating disc 12 is larger than that of the elastic wheel 13, so that the radian of the part, contacting the surface of the profile, of the second rotating disc 12 is smaller than that of the elastic wheel 13, the pressure distribution of the part to the surface of the profile is more even, and the damage to the surface structure of the profile can be reduced.
Further, the straightening device also comprises a mounting frame 14, a first lifting cylinder 111 and a second lifting cylinder 121 which are arranged on the mounting frame 14; the bottom ends of the piston rods of the first lifting cylinder 111 and the second lifting cylinder 121 are fixedly connected with a first mounting seat 112 and a second mounting seat 122 respectively; a first driving motor 113 and a second driving motor 123 are respectively arranged on the first mounting seat 112 and the second mounting seat 122; the first driving motor 113 and the second driving motor 123 are respectively connected to the first turntable 11 and the second turntable 12 through transmission shafts. Through first lift jar 111, second lift jar 121, can adjust the level position of first carousel 11, second carousel 12 to make straightener can be applicable to the section bar of different diameter specifications, first lift jar 111, the electric jar can be chooseed for use to second lift jar 121, compare cylinder and pneumatic cylinder, and the precision positioning of electric jar is higher, can reach 0.01mm rank, thereby makes the straightening of section bar more accurate. In addition, a reduction motor is used for each of the first drive motor 113 and the second drive motor 123.
In order to further improve the lifting accuracy of the first lifting cylinder 111 and the second lifting cylinder 121, avoid direction deviation during lifting, and improve the stability of supporting the first mounting seat 112 and the second mounting seat 122, at least one first guide cylinder 114 and one second guide cylinder 124 are further vertically arranged on the mounting frame 14, a first guide rod 115 and a second guide rod 125 are respectively inserted into the first guide cylinder 114 and the second guide cylinder 124 in a sliding manner, and the first guide rod 115 and the second guide rod 125 are respectively fixedly connected with the first mounting seat 112 and the second mounting seat 122. In this embodiment, two first guide cylinders 114 and two second guide cylinders 124 are provided, and are symmetrically provided on both left and right sides of the first lift cylinder 111 and the second lift cylinder 121.
In addition, in order to maintain the stability of the rotation of the first rotating disk 11 and the second rotating disk 12 and avoid the occurrence of radial shake so as to destroy the straightening effect, the first mounting seat 112 and the second mounting seat 122 are respectively provided with a first bearing seat 116 and a second bearing seat 126, and the first bearing seat 116 and the second bearing seat 126 are respectively sleeved on the transmission shafts of the first rotating disk 11 and the second rotating disk 12.
The conveying device comprises a traction mechanism and a guide mechanism, wherein the traction mechanism is used for drawing the profile to move along the axial direction of the profile, the guide mechanism is used for keeping the axial direction of the profile, and the axial direction refers to the axial direction of the profile after being straightened. The profile passing the guide is led to the straightening device and if the part of the profile between the straightening device and the guide is curved, it will be straightened by the straightening device so that its axial direction is the same as the profile at the guide.
The traction mechanism comprises traction rollers 21 which are respectively arranged at the upper side, the lower side, the left side and the right side of the profile and can be driven to rotate, the axial direction of each traction roller 21 is perpendicular to the axial direction of the profile, the axial direction also refers to the axial direction of the profile after being straightened, the traction rollers 21 are attached to the surface of the profile, and the profile is driven to move along the axial direction through rotation. The roll surfaces of the pulling rolls 21 contacting the profile are pressed to contract inwards and to spring back when the curved section of the profile passes, so that when the profile passing the pulling rolls 21 is curved, it is pressed against one of the pulling rolls 21, causing it to contract inwards, while the remaining pulling rolls 21 will be separated from the profile surface by at least one. Due to the simultaneous axial displacement of the profiles and their rotation about the axes, the profiles are pressed in turn against the other traction rollers 21, while the original traction rollers 21 return to their original position. On one hand, the contractible property of the roll surface of the traction roll 21 can avoid the profile from being broken and damaged, and the friction resistance is reduced, so that the traction efficiency is improved; on the other hand, at least one of the four pulling rollers 21 is in contact with the profile surface, so that the section encountering the profile bend can still maintain the working condition of pulling the profile.
The guide mechanism comprises a fixed seat 31 and two rotatable lower guide wheels 32 arranged on the fixed seat 31, the axial directions of the two lower guide wheels 32 are parallel to the axial direction of the profile, the axial direction refers to the straightened axial direction of the profile, and the two lower guide wheels 32 are respectively supported on the left side and the right side of the lower part of the profile. The lower guide wheel 32 should have a certain thickness so that it can provide a better supporting force to the profile, and when the profile rotates around the axial direction, the lower guide wheel 32 also rotates synchronously, so that the surface of the lower guide wheel 32 should have as low roughness as possible, and the wheel surface of the lower guide wheel 32 should be polished.
In a further improvement of the traction drum 21, the traction drum 21 includes a rotating shaft 211, and fixed circular truncated cones 212 sleeved on both ends of the rotating shaft 211, a sleeve 213 that is sleeved outside the rotating shaft 211 and can be tensioned is disposed between the two fixed circular truncated cones 212, the sleeve 213 can be made of a leather material or a mesh material with certain elasticity, a plurality of supporting columns 214 supported on the inner surface of the sleeve 213 are connected between the two fixed circular truncated cones 212, and the supporting columns 214 are arranged at equal intervals around the rotating shaft 211, so that the sleeve 213 maintains a cylindrical shape, and a portion of the sleeve 213 between any two supporting columns 214 can have the same tension. The supporting columns 214 are made of elastic materials, can be bent and deformed along the radial direction of the profile, and can rebound, when the bent part of the profile is pressed to the traction roller 21, the supporting columns 214 and the sleeves 213 are pressed to contract inwards, and when the profile is pressed to other traction rollers 21, the supporting columns 214 which contract inwards drive the sleeves 213 to rebound and reset. The supporting column 214 is preferably made of rubber, such as rubber, natural rubber, latex, etc., which has good elasticity and shape recovery performance.
In order to enhance the connection firmness of the two ends of the support column 214 on the fixed circular truncated cone 212, a sleeve 215 is arranged on the fixed circular truncated cone 212, the caliber of the sleeve 215 is slightly smaller than that of the support column 214, the end part of the support column 214 is inserted into the sleeve 215 and fixedly connected with the sleeve 215, and a fastener can be inserted into the support column 214 through the sleeve 215. In addition, the support column 214 is in tension, thereby increasing the support of the sleeve 213.
In order to reduce the cost and improve the transmission efficiency, the two traction rollers positioned at the upper side and the lower side of the section bar are in transmission connection, the transmission shafts of the two traction rollers are axially the same, so that the kinetic energy loss of the transmission connection is relatively small, and one of the two traction rollers is in transmission connection with a third driving motor 22. Similarly, two traction rollers positioned at the left side and the right side of the section bar are in transmission connection, and one traction roller is in transmission connection with a fourth driving motor 23.
In addition, two traction rollers positioned at the upper side and the lower side of the section bar and two traction rollers positioned at the left side and the right side of the section bar are arranged at intervals along the axial direction of the section bar.
The bending of the profile passing the traction mechanism, the dynamic friction between the profile and the elastic wheel 13 can cause the profile to shake or even jump, resulting in the risk of the profile being disengaged from the lower guide wheel 32. Therefore, the guiding mechanism further comprises two rotatable upper guide wheels 33 arranged on the fixed seat 31, the axial directions of the two upper guide wheels 33 are parallel to the axial direction of the section bar and are respectively supported at the left side and the right side of the upper part of the section bar, namely, the section bar is limited between the two upper guide wheels 33 and the two lower guide wheels 32, so that the shaking and jumping of the section bar can be prevented, and the axial direction of the section bar passing through the guiding mechanism can be better maintained.
In order to reduce the strong collision between the sectional material and the upper guide wheel 33 during shaking or jumping, the left side and the right side of the fixed seat 31 are respectively provided with a support 34, the support 34 is provided with a slide rod 35 which is inserted into the fixed seat 31 in a sliding manner, so that the support 34 can move left and right, the fixed seat 31 is provided with an elastic part 36 for resetting the support 34, a reset spring is preferably arranged on the slide rod 35 in a sleeved manner, the two ends of the reset spring are respectively fixedly connected with the support 34 and the fixed seat 31, and the upper guide wheel 33 is arranged on the support 34.
Example 2:
referring to fig. 7, the profile straightener comprises two supporting mechanisms and a straightener, wherein the two supporting mechanisms respectively support two ends of the profile, and the straightener is used for straightening the profile and synchronously moves along the axial direction of the profile, so that the profile is gradually straightened from one end to the other end.
As in embodiment 1, the straightening target object straightened by the profile straightening machine of the present embodiment is a profile having a circular cross section, and the straightening device of the present embodiment is moved, so that the profile straightening machine of the present embodiment is particularly suitable for a profile having a short length.
The straightening device comprises a first rotating disc 11 and a second rotating disc 12, and an elastic wheel is sleeved on the outer ring surface of the first rotating disc 11, which are the same as those in embodiment 1 and are not described again. Unlike embodiment 1, the first rotating disc 11 and the second rotating disc 12 are movable along the axial direction of the profile, and both are separately movable, which makes the straightening mode of the profile of this embodiment different from embodiment 1.
In the present embodiment, the profile is subjected to two separate processes, a first straightening and a second straightening. During the first straightening, the second rotating disc 12 is not in contact with the surface of the profile, and the elastic wheel of the first rotating disc 11 presses on the profile and moves from the front end of the profile to the rear end of the profile, so that the first straightening is performed on the profile and the profile is driven to rotate around the axial direction of the profile. During the second straightening, the first rotating disc 11 is kept pressing the profile, does not participate in the second straightening but still drives the profile to rotate around the axis of the profile, and the second rotating disc 12 presses the profile and moves from the front end to the rear end of the profile to perform the second straightening on the profile.
For further improvement of the straightening device, the straightening device also comprises a first reciprocating slide rail 41 and a first reciprocating slide 42 which are matched in a sliding mode, a second reciprocating slide rail 51 and a second reciprocating slide 52, and the first reciprocating slide 42 and the second reciprocating slide 52 are preferably used in a drag chain moving machine and have the advantages of accurate reciprocating falling position and stable moving.
The first reciprocating slider 42 is provided with a first mounting frame 43, the first mounting frame 43 is provided with a first lifting cylinder 44, the bottom end of a piston rod of the first lifting cylinder 44 is fixedly connected with a first mounting seat 45, the first mounting seat 45 is provided with a first driving motor 46, the first driving motor 46 is connected with the first rotary table 11 through a transmission shaft, the second reciprocating slider 52 is provided with a second mounting frame 53, the second mounting frame 53 is provided with a second lifting cylinder 54, the bottom end of a piston rod of the second lifting cylinder 54 is fixedly connected with a second mounting seat 55, the second mounting seat 55 is provided with a second driving motor 56, and the second driving motor 56 is connected with the second rotary table 12 through the transmission shaft.
The supporting mechanism comprises a supporting seat 61 and two rotatable rollers 62 arranged on the supporting seat 61, the axial directions of the two rollers 62 are parallel to the axial direction of the section bar and are respectively supported at the left side and the right side of the lower part of one end of the section bar, the rollers 62 provide upward supporting force for the section bar at the two ends of the section bar, and the first rotating disc 11/the second rotating disc 12 always apply downward acting force to the section bar in the straightening process, so that the section bar is in a stable stress state.
In fact, the axial direction of the two ends of the profile is not necessarily the axial direction after straightening, therefore, the supporting mechanism further comprises a supporting base 63, and the supporting base 61 is rotatably connected to the supporting base 63 and is used for keeping the axial direction of the roller 62 always parallel to the axial direction of the profile in the process of rotating the profile around the axis of the supporting base, so that the axial direction of the roller 62 and the axial direction of the two ends of the profile are prevented from deviating to cause main profile jamming and damage to the surface of the profile.
In addition, be equipped with the elasticity piece that resets between support base 63 and the supporting seat 61 for order to order about the supporting seat 61 rotates to reset to the axial of gyro wheel 62 and is the level, support base 63 and supporting seat 61 preferably adopt the pivot articulated, and the elasticity piece that resets preferably uses the torsional spring in order to order about the elasticity seat rotation that resets, under the effect of the elasticity piece that resets after accomplishing the straightening, makes the section bar naturally be the horizontality.
Since the first rotating disc 11 and the second rotating disc 12 move along the axial direction of the profile and generate an acting force on the profile to make the profile slide along the axial direction when the first straightening or the second straightening is performed, the supporting mechanism further comprises a stop plate 64, and the stop plate 64 abuts against one end of the profile and is used for preventing the profile from sliding along the axial direction.
In order to adapt the profile straightener of this embodiment to profiles of different length specifications, at least one of the support means is provided with a linear slide 65, along which the support base 63 can slide and lock for changing the spacing between the two support means.
Example 3:
a straightening method using a profile straightening machine in embodiment 2 comprises the following steps:
s1: adjusting the distance between the two supporting mechanisms to match the length of the section bar, respectively placing the front end and the rear end of the section bar on the two supporting structures, and abutting the abutting plates of the supporting mechanisms against the section bar;
s2: starting a first lifting cylinder and a first driving motor to enable an elastic wheel of a first rotary disc to press the surface of the section bar and drive the section bar to rotate around the axis of the section bar, starting a first reciprocating slider to enable the first rotary disc to slide from the front end of the section bar to the rear end of the section bar, and performing first correction on the section bar;
s3: stopping first reciprocating motion ware and making first carousel stop at the rear end of section bar, starting second lift cylinder and second driving motor for the second carousel presses on the section bar surface, starts the reciprocating motion ware of second, makes the second carousel slide to the rear end of section bar by the front end of section bar, carries out the second time to the section bar and corrects.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments can be modified, or some technical features can be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A straightening apparatus, characterized by comprising: the first rotating disc and the second rotating disc can be driven to rotate; the axial directions of the first rotating disc and the second rotating disc are parallel to the axial direction of the section bar, and the first rotating disc and the second rotating disc simultaneously press the surface of the section bar moving along the axial direction; the outer ring surface of the first turntable is sleeved with an elastic wheel which can be extruded by the first turntable and the section bar and is used for pre-straightening the section bar and driving the section bar to rotate around the axis of the section bar; the second rotary table is used for re-straightening the section; the outer ring surface of the first rotating disc is provided with a plurality of annular grooves which are arranged in parallel along the axial direction of the first rotating disc; the elastic wheel comprises a plurality of elastic rings which correspond to the annular grooves one to one, and the elastic rings are embedded in the annular grooves.
2. The straightening device according to claim 1, wherein the outer circumferential surface of the elastic wheel has a plurality of straight grooves formed to be depressed inward and parallel to the axial direction of the elastic wheel.
3. Straightening device according to claim 1, characterized in that the diameter of the second turning disc is larger than the diameter of the spring wheel.
4. Straightening arrangement according to claim 1, characterized in that both the first rotary disc and the second rotary disc can be driven to move up and down.
5. The straightening device according to claim 1, further comprising a mounting frame, a first lifting cylinder and a second lifting cylinder arranged on the mounting frame; the bottom ends of the piston rods of the first lifting cylinder and the second lifting cylinder are respectively and fixedly connected with a first mounting seat and a second mounting seat; a first driving motor and a second driving motor are respectively arranged on the first mounting seat and the second mounting seat; the first driving motor and the second driving motor are respectively connected with the first rotating disc and the second rotating disc through transmission shafts.
6. The straightening device according to claim 5, wherein at least one first guide cylinder and at least one second guide cylinder are vertically arranged on the mounting frame, a first guide rod and a second guide rod are slidably inserted into the first guide cylinder and the second guide cylinder respectively, and the first guide rod and the second guide rod are fixedly connected with the first mounting seat and the second mounting seat respectively.
7. The straightening device according to claim 5, wherein the first mounting seat and the second mounting seat are respectively provided with a first bearing seat and a second bearing seat, and the first bearing seat and the second bearing seat are respectively sleeved on transmission shafts of the first rotating disc and the second rotating disc.
8. A profile straightener, characterized by comprising a straightener, a conveyor as claimed in any one of claims 1 to 7; the conveying device comprises a traction mechanism for driving the section bar to move along the axial direction of the section bar and a guide mechanism for keeping the section bar in the axial direction and guiding the section bar to the straightening device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111399829.XA CN114210771B (en) | 2021-11-24 | 2021-11-24 | Straightening device and section straightening machine |
| PCT/CN2021/132784 WO2023092330A1 (en) | 2021-11-24 | 2021-11-24 | Straightening device and section material straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111399829.XA CN114210771B (en) | 2021-11-24 | 2021-11-24 | Straightening device and section straightening machine |
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| CN114210771A CN114210771A (en) | 2022-03-22 |
| CN114210771B true CN114210771B (en) | 2022-11-04 |
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| CN (1) | CN114210771B (en) |
| WO (1) | WO2023092330A1 (en) |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810850A (en) * | 1994-06-27 | 1996-01-16 | Toko Kikai Kk | Straightening method and straightening device for metallic products |
| JP2004230387A (en) * | 2003-01-28 | 2004-08-19 | Jfe Steel Kk | Steel pipe rotating machine |
| JP4468879B2 (en) * | 2005-10-11 | 2010-05-26 | 宮▲崎▼機械システム株式会社 | Straightening machine |
| CN103691771B (en) * | 2013-12-30 | 2015-12-30 | 安徽鼎能节能设备有限公司 | A kind of aluminium section bar straightener |
| CN204974833U (en) * | 2015-07-31 | 2016-01-20 | 孟令启 | A straightener for tubular product |
| CN206838805U (en) * | 2017-06-20 | 2018-01-05 | 上海格尔恒精材料科技有限公司 | A kind of straightener and its discharging mechanism |
| CN108057735A (en) * | 2017-12-14 | 2018-05-22 | 天津腾飞钢管有限公司 | A kind of general shape pipe straightener structure |
| CN208050643U (en) * | 2018-04-08 | 2018-11-06 | 江苏建筑职业技术学院 | A kind of easy-to-dismount effective method of straightening device |
| CN208583838U (en) * | 2018-06-08 | 2019-03-08 | 康丹华 | A kind of aluminum profile straightener for industry |
| CN209986030U (en) * | 2019-05-22 | 2020-01-24 | 无锡市前洲无缝钢管有限公司 | Prestraightening machine for producing cold-drawn precise seamless steel pipe |
| CN210763507U (en) * | 2019-09-10 | 2020-06-16 | 格瑞夫柔性包装(常州)有限公司 | Rubber roller for loading lifting belt |
| CN110614294A (en) * | 2019-10-23 | 2019-12-27 | 中铝萨帕特种铝材（重庆）有限公司 | Long and large aluminum profile online hot shape correcting tool |
| CN211413236U (en) * | 2019-12-25 | 2020-09-04 | 肇庆豪发铝材科技有限公司 | Straightening device for aluminum profile production |
| CN111250565B (en) * | 2020-02-10 | 2021-05-04 | 武汉理工大学 | Straightening device for metal thin-wall circular tube |
| CN111790775B (en) * | 2020-08-18 | 2021-03-16 | 大冶市华厦铝业有限公司 | Straightening device for eliminating bending and twisting of aluminum profile |
| CN213915557U (en) * | 2020-11-03 | 2021-08-10 | 无锡市新峰管业有限公司 | Pre-straightening structure used after surface treatment of titanium alloy seamless tube blank |
| CN112275843A (en) * | 2020-11-03 | 2021-01-29 | 无锡市新峰管业有限公司 | Pre-straightening structure used after surface treatment of titanium alloy seamless tube blank |
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2021
- 2021-11-24 CN CN202111399829.XA patent/CN114210771B/en active Active
- 2021-11-24 WO PCT/CN2021/132784 patent/WO2023092330A1/en unknown
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| CN114210771A (en) | 2022-03-22 |
| WO2023092330A1 (en) | 2023-06-01 |
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