WO2023092332A1

WO2023092332A1 - Conveying device and section material straightening machine

Info

Publication number: WO2023092332A1
Application number: PCT/CN2021/132788
Authority: WO
Inventors: 赵守明
Original assignee: 栋梁铝业有限公司
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2023-06-01
Also published as: CN114210772B; CN114210772A

Abstract

Disclosed in the present invention is a conveying device, comprising: a traction mechanism, which comprises traction rollers that are respectively arranged on an upper side, a lower side, a left side and a right side of a section material and can be driven to rotate, wherein the axial direction of each traction roller is perpendicular to the axial direction of the section material, and the surface of each traction roller that comes into contact with the section material can be pressed to retract inwards when the surface passes through a bent portion of the section material, and can rebound; and a guide mechanism, which comprises a fixed base and two rotatable lower guide wheels arranged on the fixed base, wherein the axial directions of the two lower guide wheels are parallel to the axial direction of the section material, and the two lower guide wheels are respectively supported on a left side and a right side of a lower portion of the section material. Further disclosed in the present invention is a section material straightening machine. The present invention has the beneficial effect that a cylindrical tubular section material can be stably pulled and conveyed in order to be straightened.

Description

A conveying device and a profile straightening machine

technical field

The invention relates to a conveying device and a profile straightening machine, which are applied in the technical field of profile processing.

Background technique

Straightening machine is a device for straightening metal profiles, bars, pipes, wires, etc. The straightening machine uses straightening rollers to squeeze the bar to change the straightness. Generally, there are two rows of straightening rollers with different numbers. This type of straightening machine is more suitable for products with high structural strength such as steel pipes. As far as the profile is concerned, the hollow structure makes the surface strength weak, and it is easy to be damaged and broken during the straightening process.

For example, the patent application with the prior art publication number CN103691771B discloses a straightening device for aluminum profiles, which includes a bracket, and the bracket has two slide rails, and also includes a main straightening vehicle and an auxiliary straightening vehicle arranged on the slide rails. Straight car, the main straightening car includes a car body, the front end of the car body is provided with a clamping port for extending into the aluminum profile, and the car body is provided with a clamping mechanism for clamping the aluminum profile and for driving The driving mechanism of the clamping mechanism, the clamping mechanism includes two sections of vertically symmetrical inclined slideways arranged at the front end of the vehicle body and engaging blocks respectively arranged on the two sections of the inclined slideways; The driving mechanism includes a driving gear and a driven gear which are arranged in the vehicle body and mesh with each other. An eccentric rod is arranged on the driving gear and the driven gear, and a transmission gear is arranged between the eccentric rod and the engaging block. One end of the transmission rod is hinged to the eccentric rod, and the other end is hinged to the engaging block; the front end of the car body is also provided with an isolation mechanism for avoiding direct contact between human hands and the clamping mechanism, and the auxiliary The straightening car has the same structure as the main straightening car.

technical problem

The existing technology can effectively stretch and straighten the aluminum profile to eliminate the bending and twisting of the aluminum profile, and at the same time eliminate the uneven stress of the aluminum profile along the cross-sectional direction, the operation is efficient, and the straightening effect is good. There are following defects when using the straightening device to straighten the circular tubular profile:

The structural shape of the cross-section of the profile is relatively complex, so that there are certain differences in the structural strength of different positions on the surface of the profile. When the profile is stretched, it will cause uneven force on the profile, which will affect the straightening effect, and the weaker part Also prone to damage. In addition, the straightening effect of the straightening device will be compromised for longer profiles.

technical solution

The technical problem to be solved by the present invention is to provide a conveying device and a profile straightening machine, which can stably drag and transport circular tubular profiles to be straightened.

The present invention is achieved through the following technical solutions.

A delivery device comprising:

Traction mechanism, which includes traction rollers that can be driven to rotate respectively arranged on the upper, lower, left, and right sides of the profile; the axial direction of the traction roller is perpendicular to the axial direction of the profile; The curved part of the profile can shrink inwardly under pressure and rebound;

The guide mechanism includes a fixed seat and two rotatable lower guide wheels arranged on the fixed seat; the axial directions of the two lower guide wheels are parallel to the axial direction of the profile, and are respectively supported on the left and right sides of the lower part of the profile .

As a further improvement of the present invention, the traction roller includes a rotating shaft and fixed round tables sleeved at both ends of the rotating shaft; a sleeve that is sleeved outside the rotating shaft and can be tensioned is provided between the two fixed round tables ; A plurality of support columns supported on the inner surface of the sleeve are connected between the two fixed round platforms, and the support columns can be bent and deformed along the radial direction and rebound.

As a further improvement of the present invention, a casing is provided on the fixed round platform; the end of the support column is inserted into the casing and fixedly connected with the casing.

As a further improvement of the present invention, the support column is a columnar member made of glue.

As a further improvement of the present invention, the guide mechanism also includes two rotatable upper guide wheels arranged on the fixed seat; the axial directions of the two upper guide wheels are parallel to the axial direction of the profile, and are respectively supported on the profile upper left and right sides.

As a further improvement of the present invention, the left and right sides of the fixing seat are respectively provided with brackets that can move left and right, and the fixing seat is provided with an elastic member for the bracket to reset; the upper guide wheel is arranged on the bracket.

As a further improvement of the present invention, the two traction rollers on the upper and lower sides of the profile are connected by transmission, and one of the traction rollers is connected by a third drive motor; the two traction rollers on the left and right sides of the profile are connected by transmission, and One of the traction rollers is drive-connected with a fourth drive motor.

As a further improvement of the present invention, the two traction rollers located on the upper and lower sides of the profile and the two traction rollers located on the left and right sides of the profile are arranged at intervals along the axial direction of the profile.

A profile straightening machine includes the conveying device and a straightening device; the straightening device is used to press the profile drawn out by the guide mechanism and drive the profile to rotate around its axis.

Beneficial effect

The present invention pulls and conveys the profile through the traction rollers located on the four sides of the profile, and the characteristics of the traction roller can be compressed inwardly so that the profile in the curved state can be transported stably and improves the conveying efficiency; it also uses the traction mechanism to make The profile is guided to keep the axial direction without deviation before straightening, so that the subsequent straightening effect can be improved.

Description of drawings

Preferred implementation cases in the present invention will be described in detail below by accompanying drawings, to help understand the purpose and advantages of the present invention, wherein:

Fig. 1 is the side view of implementation case 1 profile straightening machine;

Fig. 2 is a schematic cross-sectional view of the first turntable of Embodiment 1;

Fig. 3 is the front view of the third driving motor and the traction roller of embodiment 1;

Fig. 4 is the front view of the fourth drive motor and the traction roller of embodiment 1;

Fig. 5 is the sectional view of embodiment case 1 traction roller;

Fig. 6 is the front view of the traction mechanism of implementation case 1;

Fig. 7 is a side view of the profile straightening machine of Embodiment 2.

Embodiments of the present invention

The present invention will be described in further detail below according to the accompanying drawings and examples of implementation.

The directional terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words " "Inside" and "outside" respectively refer to the direction toward or away from the geometric center of a specific component. They are relative concepts, so they may change accordingly according to their different positions and different usage states. Accordingly, these or other directional terms should not be construed as limiting terms.

Implementation case 1:

Referring to Figures 1-6, a profile straightening machine includes a straightening device and a conveying device, the conveying device is used to drag and transport the profile to be straightened along its axial direction, and the straightening device is used to continuously Straighten the section where the profile passes until the profile passes completely.

The target object straightened by the profile straightening machine in this implementation case is a profile with a circular cross section. In addition, because the straightening device of the profile straightening machine in this implementation case does not move horizontally during work, but passes through The conveying device pulls the profile to move, so the profile straightening machine in this implementation case is especially suitable for profiles with a long length.

The straightening device includes a first turntable 11 and a second turntable 12. Both the first turntable 11 and the second turntable 12 can be driven to rotate, and the axes of the first turntable 11 and the second turntable 12 are parallel to the profile It should be noted that the axial direction here refers to the axial direction after the profile is straightened. When straightening the profile, the first turntable 11 and the second turntable 12 are pressed against the surface of the profile. In terms of function, the first turntable 11 and the second turntable 12 are differentiated. The profiles are transported under the traction of the conveying device. Straightening, the second turntable 12 re-straightens the profiles.

The two structural characteristics of the profile will cause two defects. The hollow structure leads to a lower compressive load on the profile surface, and the more complex structural shape of the cross section leads to differences in the structural strength of the profile surface, so that the first turntable 11 performs a pair of profiles. The strength of pre-straightening needs to be controlled. Therefore, the outer surface of the first turntable 11 is covered with an elastic wheel 13, 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 squeezed and deformed by the outer ring surface of the first turntable 11 and the profile surface, and the elastic support force exerted by the elastic wheel 13 on the profile surface pre-straightens the profile, and since the first turntable 11 is driven to rotate, Therefore, the static friction along the circumferential direction of the profile generated between the elastic wheel 13 and the surface of the profile can also drive the profile to rotate around its axis. Of course, the rotation speed of the first turntable 11 and the speed at which the conveying device pulls and conveys the profiles need to be controlled. In theory, it is necessary to speed up the rotation speed of the first turntable 11 and slow down the speed at which the conveying device pulls and conveys the profiles, thereby improving the elastic wheel 13 to expand the contact. The coverage rate and time of the profile surface, but in order to avoid the profile rotation instability caused by the high speed of the first turntable 11, and the efficiency of profile straightening, these two speeds need to be set reasonably according to the actual application situation.

After the profile is pre-straightened by the first turntable 11, it then passes through the second turntable 12, and the second turntable 12 presses on the surface of the profile to apply a rigid support force, thereby re-straightening the profile, and finally makes the profile pass through the second turntable. The portion of the second turntable 12 is completely straightened. Through the pre-straightening of the elastic support force and the re-straightening of the rigid support force, there is a buffer transition process for the straightening of the profile as a whole, which avoids the characteristics of the profile due to the weak surface compressive load and the difference in surface strength. In the process of straightening, damage occurs, which plays a role in protecting the profile.

Since the profile is pulled by the conveying device to move in the axial direction, the elastic ring 131 of the first turntable 11 will move relative to the profile in the axial direction, so that dynamic friction along the axial direction of the profile is generated between the elastic wheel 13 and the surface of the profile The dynamic friction force makes the profile vibrate, which will reduce the stability of the profile movement. And the dynamic friction force is proportional to the elastic support force exerted by the elastic wheel 13 on the profile surface, that is to say, the higher the curvature of the profile passing through the elastic wheel 13, the greater the dynamic friction force and the worse the stability of the profile movement. Based on this, the outer ring surface of the elastic wheel 13 has a plurality of straight grooves 13-1 formed by inward depressions and parallel to the axial direction of the elastic wheel 13, the straight grooves 13-1 are arranged at equal intervals, and the straight grooves 13 The setting of -1 and its directionality can reduce the above-mentioned dynamic friction force, thereby improving the stability of the profile moving along the axial direction.

It should be noted that the above-mentioned kinetic friction force will also cause the elastic wheel 13 to twist and deform along the moving direction of the profile, thus causing the elastic wheel 13 to tend to separate from the outer ring surface of the first turntable 11 . Therefore, the outer ring surface of the first turntable 11 has a plurality of annular grooves 11 - 1 arranged in parallel along the axial direction of the first turntable 11 . The elastic wheel 13 includes a plurality of elastic rings 131, and each elastic ring 131 is respectively embedded in a corresponding annular groove 11-1, which is equivalent to increasing the contact between the elastic wheel 13 and the outer ring surface of the first turntable 11 area, so that the strength of the elastic wheel 13 sleeved on the first turntable 11 is enhanced, which reduces the amount of twisting and deformation in the moving direction of the profile. In addition, the elastic ring 131 can be replaced separately after aging and damage, which also reduces the replacement cost.

In order to further reduce damage to the surface of the profile caused by the rigid support force of the second turntable 12 during the re-straightening process, the diameter of the second turntable 12 is larger than the diameter of the elastic wheel 13, so that the arc of the second turntable 12 contacting the surface of the profile is smaller than the elastic wheel. Wheel 13, so that the pressure distribution of this part on the surface of the profile is more even, so that the damage to the surface structure of the profile can be reduced.

Further, the straightening device also includes a mounting frame 14, a first lifting cylinder 111 and a second lifting cylinder 121 arranged on the mounting frame 14; the piston rod bottoms of the first lifting cylinder 111 and the second lifting cylinder 121 The ends are respectively fixedly connected with a first mount 112 and a second mount 122; the first drive motor 113 and the second drive motor 123 are respectively arranged on the first mount 112 and the second mount 122; the first drive The motor 113 and the second drive motor 123 are respectively connected to the first turntable 11 and the second turntable 12 through transmission shafts. Through the first lift cylinder 111 and the second lift cylinder 121, the horizontal height positions of the first turntable 11 and the second turntable 12 can be adjusted, so that the straightening device can be applied to profiles with different diameters. The first lift cylinder 111, the second turntable The second lifting cylinder 121 can be an electric cylinder. Compared with the air cylinder and hydraulic cylinder, the precision positioning of the electric cylinder is higher, up to 0.01mm level, so that the straightening of the profile is more accurate. In addition, both the first driving motor 113 and the second driving motor 123 use geared motors.

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 base 112 and the second mounting base 122, the mounting bracket 14 At least one first guide cylinder 114 and second guide cylinder 124 are also erected upright, and a first guide rod 115 and a second guide rod 125 are slidably inserted in the first guide cylinder 114 and the second guide cylinder 124 respectively. A guide rod 115 and a second guide rod 125 are fixedly connected to the first mounting base 112 and the second mounting base 122 respectively. In this embodiment, there are two first guide cylinders 114 and two second guide cylinders 124 respectively, and they are symmetrically arranged on the 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 turntable 11 and the second turntable 12 and avoid radial vibrations that will damage the straightening effect, the first mounting base 112 and the second mounting base 122 are respectively provided with a first bearing seat 116 and the second bearing seat 126 , the first bearing seat 116 and the second bearing seat 126 are respectively sleeved on the transmission shafts of the first turntable 11 and the second turntable 12 .

The conveying device includes a traction mechanism and a guide mechanism. The traction mechanism is used to pull the profile to move along its axial direction. The guide mechanism is used to maintain the axial direction of the profile. It should be noted that the axial direction here refers to the profile Axial after being straightened. The profile through the guide mechanism is led to the straightening device. If the part of the profile between the straightening device and the guide mechanism is curved, it will be straightened by the straightening device so that the axial direction of the profile is the same as that of the profile at the guide mechanism.

The traction mechanism includes traction rollers 21 that can be driven to rotate, respectively arranged on the upper, lower, left, and right sides of the profile. The axial direction of the traction roller 21 is perpendicular to the axial direction of the profile, and the axial direction here also refers to the In the axial direction after straightening, the traction roller 21 is attached to the surface of the profile, and drives the profile to move along its axial direction through rotation. The roller surface of the traction roller 21 that contacts the profile can be compressed inwardly and can rebound when the curved part of the profile passes by. Therefore, when the profile passing through the traction roller 21 is curved, it will be pressed to one of the traction rollers. Roller 21 makes it shrink inwardly, and the rest of traction roller 21 will have at least one and profile surface separation. Because the profile moves axially and rotates around the axis synchronously, the profile will be pressed to other traction rollers 21 in turn, and the roller surface of the original traction roller 21 will reset and rebound. On the one hand, the retractable characteristics of the roller surface of the traction roller 21 can avoid damage to the profile, reduce frictional resistance and improve traction performance; on the other hand, at least one of the four traction rollers 21 is in contact with the surface of the profile Therefore, the part that encounters the bending of the profile can still maintain the working state of pulling the profile to move.

The guide mechanism includes 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, and the axial direction here refers to is the axial direction after the profile is straightened, and the two lower guide wheels 32 are respectively supported on the left and right sides of the bottom of the profile. The lower guide wheel 32 needs to have a certain thickness so that it can provide better support for the profile. When the profile rotates around the axial direction, the lower guide wheel 32 also rotates synchronously, so the surface of the lower guide wheel 32 needs to be as low as possible. roughness, the wheel surface of the lower guide wheel 32 can be polished.

For the further improvement of the traction roller 21, the traction roller 21 includes a rotating shaft 211, a fixed round table 212 sleeved on both ends of the rotating shaft 211, and a fixed round table 212 sleeved on the rotating shaft 211 is provided between the two fixed round tables 212. In addition to the sleeve 213 that can be tensioned, the sleeve 213 can be selected from a leather material or a mesh material with a certain degree of elasticity. There are multiple supports on the inner surface of the sleeve 213 between the two fixed round tables 212. The supporting columns 214 on the top, the supporting columns 214 are arranged at equal intervals around the rotating shaft 211, so that the sleeve 213 maintains a cylindrical shape, and the part of the sleeve 213 between any two supporting columns 214 has the same tightness . The support column 214 is made of elastic material, which can be bent and deformed along its radial direction and rebound. When the curved part of the profile is pressed against the traction roller 21, the support column 214 and the sleeve 213 are compressed inwardly and shrink, and When the profile is pressed against other traction rollers 21, the inwardly contracted support column 214 drives the sleeve 213 to rebound and reset. The support column 214 is preferably made of rubber material, such as rubber, natural rubber, latex, etc., and these rubber materials have better elasticity and shape recovery properties.

In order to strengthen the firmness of the connection between the two ends of the support column 214 on the fixed round platform 212, the fixed round platform 212 is provided with a sleeve 215, the diameter of the sleeve 215 is slightly smaller than the support column 214, and the end of the support column 214 Inserted in the sleeve 215 and fixedly connected with the sleeve 215 , a fastener can be inserted through the sleeve 215 into the support column 214 . In addition, the support column 214 is in a stretched state, so as to increase the strength of supporting the sleeve 213 .

In order to reduce costs and improve transmission efficiency, the two traction rollers located on the upper and lower sides of the profile are connected by transmission. The drive shafts of the two traction rollers have the same axial direction, so the kinetic energy loss of the transmission connection is relatively small. The two traction rollers One of the cylinders is transmission-connected with a third drive motor 22 . Similarly, the two traction rollers located on the left and right sides of the profile are connected by transmission, and one of the traction rollers is connected by a fourth driving motor 23 by transmission.

In addition, the two traction rollers located on the upper and lower sides of the profile and the two traction rollers located on the left and right sides of the profile are arranged at intervals along the axial direction of the profile.

The curved part of the profile passes through the traction mechanism, and the dynamic friction between the profile and the elastic wheel 13 will cause the profile to vibrate or even jump, resulting in the risk of the profile being detached from the lower guide wheel 32 . Therefore, the guide mechanism also includes 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 profile, and are respectively supported on the top of the profile. The left and right sides, that is, the profile is limited between the two upper guide wheels 33 and the two lower guide wheels 32, can not only stop the shaking and jumping of the profile, but also better maintain the axial direction of the profile through the guide mechanism.

In order to reduce the strong collision with the upper guide wheel 33 when the profile shakes or jumps, brackets 34 are respectively provided on the left and right sides of the fixed seat 31, and a slide bar 35 is provided on the bracket 34 to slide and insert in the fixed seat 31. Thereby described support 34 can move left and right, and described fixed seat 31 is provided with elastic member 36 and is used for the reset of support 34, preferably return spring and it is sleeved on the slide bar 35, and the two ends of return spring are fixedly connected respectively The bracket 34 and the fixing seat 31 , the upper guide wheel 33 is arranged on the bracket 34 .

Implementation case 2:

Referring to Figure 7, a profile straightening machine includes two support mechanisms and a straightening device, the two support mechanisms respectively support the two ends of the profile, the straightening device is used to straighten the profile, and synchronously Moving along the axial direction of the profile, the profile is gradually straightened from one end to the other.

Same as Example 1, the target object straightened by the profile straightening machine in this example is a profile with a circular cross-section. The difference is that the straightening device in this example is mobile, so the profile in this example Straightening machines are especially suitable for profiles with shorter lengths.

The straightening device includes a first turntable 11 and a second turntable 12, and the outer ring of the first turntable 11 is covered with elastic wheels, which are the same as those in Embodiment 1, and will not be repeated here. Different from Embodiment 1, the first turntable 11 and the second turntable 12 can move along the axial direction of the profile, and both can move independently, which makes the straightening mode of the profile in this embodiment different from that of Implementation Case 1.

In this implementation case, the profiles go through two separate processes, the first straightening and the second straightening. When straightening for the first time, the second turntable 12 is not in contact with the profile surface, and the elastic wheel of the first turntable 11 is pressed on the profile and moves from the front end to the rear end of the profile, thereby implementing Straightening for the first time and driving the profile to rotate around its axis. During the second straightening, the first turntable 11 remains pressed against the profile, does not participate in the second straightening but still drives the profile to rotate around its axis, while the second turntable 12 presses on the profile and moves from the front end of the profile to At the rear end, the second straightening of the profile is carried out.

For the further improvement of the straightening device, the straightening device also includes the first reciprocating slide rail 41 and the first reciprocating slider 42, the second reciprocating slide rail 51 and the second reciprocating slider 52 that are slidingly fitted, the first reciprocating slide rail 51 and the second reciprocating slider 52, the first Both the reciprocating slider 42 and the second reciprocating slider 52 are preferably drag chain mobile machines, which have the advantages of accurate reciprocating movement and stable movement.

The first mounting frame 43 is set on the first reciprocating slider 42, the first lifting cylinder 44 is set on the first mounting frame 43, the bottom end of the piston rod of the first lifting cylinder 44 is fixedly connected to the first mounting base 45, the first mounting A first driving motor 46 is arranged on the seat 45, and the first driving motor 46 is connected to the first turntable 11 through a transmission shaft. Cylinder 54, the bottom end of the piston rod of the second lifting cylinder 54 is fixedly connected to the second mount 55, the second mount 55 is provided with a second drive motor 56, and the second drive motor 56 is connected to the second turntable 12 through a transmission shaft.

The support mechanism includes a support seat 61 and two rotatable rollers 62 arranged on the support seat 61. The axial directions of the two rollers 62 are parallel to the axial direction of the profile, and are respectively supported on the left and right sides at the bottom of one end of the profile. side, the rollers 62 provide an upward support force at both ends of the profile, and the first turntable 11/second turntable 12 always exert a downward force on the profile during the straightening process, so that the profile is in a stable in the stressed state.

In fact, the axial direction of both ends of the profile is not necessarily the axial direction after straightening, so the support mechanism also includes a support base 63, and the support base 61 is rotatably connected to the support base 63 for the profile In the process of rotating around its axis, keep the axial direction of the roller 62 parallel to the axial direction of the profile, so as to avoid the axial deviation of the axial direction of the roller 62 and the axial direction of both ends of the profile, which will cause the main profile and the opposite profile to be stuck. surface damage.

In addition, an elastic reset member is provided between the support base 63 and the support base 61, which is used to drive the support base 61 to rotate and return to the axial direction of the roller 62 to be horizontal. The support base 63 and the support base 61 are preferably hinged by a rotating shaft. The elastic return member preferably uses a torsion spring to drive the elastic seat to reset and rotate, and after the straightening is completed, under the action of the elastic return member, the profile is naturally horizontal.

Since the first turntable 11 and the second turntable 12 move along the axial direction of the profile during the first straightening or the second straightening, they will generate a force to make the profile slide axially, so the The support mechanism also includes a stop plate 64, which is against one end of the profile and used to prevent the profile from sliding in the axial direction.

In order to adapt the profile straightening machine of this embodiment to profiles of different lengths and specifications, at least one support mechanism is provided with a linear slide rail 65, and the support base 63 can slide and lock along the linear slide rail 65 for changing two Spacing between supports.

Implementation case 3:

A kind of straightening method using implementation case 2 profile straightening machine, the steps include:

S1: Adjust the distance between the two support mechanisms to match the length of the profile, place the front end and rear end of the profile on the two support structures respectively, and place the stop plate of the support mechanism against the profile;

S2: Start the first lifting cylinder and the first driving motor, so that the elastic wheel of the first turntable is pressed on the surface of the profile and drive the profile to rotate around its axis, and start the first reciprocating slider, so that the first turntable slides from the front end of the profile to the profile The rear end of the profile is corrected for the first time;

S3: Stop the first reciprocating mover so that the first turntable stays at the rear end of the profile, start the second lifting cylinder and the second drive motor, make the second turntable press on the surface of the profile, start the second reciprocating mover, make the second turntable Sliding from the front end of the profile to the rear end of the profile, the profile is corrected for the second time.

Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned examples of implementation, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions recorded in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements 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

A delivery device, characterized in that it comprises:

Traction mechanism, which includes traction rollers that can be driven to rotate respectively arranged on the upper, lower, left, and right sides of the profile; the axial direction of the traction roller is perpendicular to the axial direction of the profile; The curved part of the profile can shrink inwardly under pressure and rebound;

The guide mechanism includes a fixed seat and two rotatable lower guide wheels arranged on the fixed seat; the axial directions of the two lower guide wheels are parallel to the axial direction of the profile, and are respectively supported on the left and right sides of the lower part of the profile .
The conveying device according to claim 1, characterized in that, the traction roller comprises a rotating shaft and fixed round tables sleeved at both ends of the rotating shaft; A sleeve that can be tensioned; a plurality of support columns supported on the inner surface of the sleeve are connected between the two fixed round platforms, and the support columns can be bent and deformed along the radial direction and rebound.
The conveying device according to claim 2, characterized in that, a casing is provided on the fixed circular platform; the end of the support column is inserted in the casing and fixedly connected with the casing.
The conveying device according to claim 2, wherein the support column is a columnar member made of glue.
The conveying device according to claim 1, wherein the guide mechanism further comprises two rotatable upper guide wheels arranged on the fixed seat; the axial directions of the two upper guide wheels are parallel to the axis of the profile direction, and are respectively supported on the left and right sides of the upper part of the profile.
The conveying device according to claim 5, characterized in that, the left and right sides of the fixed base are respectively provided with brackets that can move left and right, and the fixed base is provided with an elastic member for the reset of the bracket; the upper guide wheel is arranged on on the stand.
The conveying device according to claim 1, characterized in that, the two traction rollers located on the upper and lower sides of the profile are connected by transmission, and one of the traction rollers is connected by a third drive motor; the two traction rollers located on the left and right sides of the profile The traction rollers are transmission-connected, and one of the traction rollers is transmission-connected with a fourth drive motor.
The conveying device according to claim 7, characterized in that the two traction rollers located on the upper and lower sides of the profile and the two traction rollers located on the left and right sides of the profile are arranged at intervals along the axial direction of the profile.
A profile straightening machine, comprising the conveying device and the straightening device according to any one of claims 1-8; the straightening device is used to press the profile drawn out by the guide mechanism, and drive the profile around it Axis rotation.