Push bending machine for reinforcing steel bars

Abstract

The utility model relates to the technical field of reinforcing steel bar machining, and provides a top bending machine for reinforcing steel bars, which comprises a base and a top bending assembly, and the top bending assembly is arranged on the base and is used for top bending of the reinforcing steel bars; the top bending assembly comprises a top bending oil cylinder, a top wheel, a first limiting wheel, a second limiting wheel, a third limiting wheel and a fourth limiting wheel, the top wheel is connected to a piston rod of the top bending oil cylinder, and the first limiting wheel, the second limiting wheel, the third limiting wheel and the fourth limiting wheel are sequentially arranged and form a limiting groove; the limiting grooves are used for limiting the reinforcing steel bars; the first limiting wheel and the fourth limiting wheel are located on one side of a reinforcing steel bar, the second limiting wheel and the third limiting wheel are located on the other side of the reinforcing steel bar, and the jacking wheel is used for jacking and bending the reinforcing steel bar between the second limiting wheel and the third limiting wheel. The reinforcing steel bar bending device has the effects of conveniently bending reinforcing steel bars and reducing the labor intensity of workers.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel bar processing, and particularly relates to a bending machine for steel bars. BACKGROUND

[0002] With the acceleration of urbanization construction, the number of subways is increasing, and the use of steel bars is indispensable in the construction process of subways. In the process of pipe piece steel bar cage processing and manufacturing, the main steel bar pipe bending parts of the steel bar cage to be used need to be bent to form an arc-shaped groove.

[0003] For the related technologies in the above, in the prior art, the bending of the steel bar is performed by manual operation with the aid of auxiliary tools. When bending, the operator also needs to position the steel bar to avoid the position deviation of the steel bar caused by stress. Such a bending method leads to relatively poor bending efficiency and bending quality, and the working strength is large, and thus needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] In order to facilitate the bending of the steel bar and reduce the labor intensity of personnel, the present application provides a bending machine for steel bars.

[0005] The bending machine for steel bars provided by the present application adopts the following technical solution:

[0006] The bending machine for steel bars comprises a base and a bending assembly, the bending assembly is arranged on the base and is used for bending the steel bar, the bending assembly comprises a bending oil cylinder, a top wheel, a first limiting wheel, a second limiting wheel, a third limiting wheel and a fourth limiting wheel, the top wheel is connected to the piston rod of the bending oil cylinder, the first limiting wheel, the second limiting wheel, the third limiting wheel and the fourth limiting wheel are sequentially arranged and form a limiting groove, and the limiting groove is used for limiting the steel bar.

[0007] The first limiting wheel and the fourth limiting wheel are located on one side of the steel bar, the second limiting wheel and the third limiting wheel are located on the other side of the steel bar, and the top wheel is used for bending the steel bar between the second limiting wheel and the third limiting wheel.

[0008] By adopting the above technical solution, during production, the operator first places the steel bar in the limiting groove, one side of the steel bar is blocked by the first limiting wheel and the fourth limiting wheel, and the other side of the steel bar is blocked by the second limiting wheel and the third limiting wheel, so that the positioning of the steel bar is realized. Then the bending oil cylinder is operated, the piston rod of the bending oil cylinder is elongated to drive the top wheel to gradually approach the steel bar, and under the action of pressure, the bending and forming of the steel bar are realized, thereby effectively improving the production efficiency and reducing the labor intensity of personnel.

[0009] Preferably, the plurality of sets of the top bending assembly are arranged on the base in a circular arc direction.

[0010] By using the above technical scheme, since multiple-point top bending needs to be performed on the steel bar during production, and the relative position of the steel bar and the top bending assembly needs to be manually adjusted after each top bending, errors are easily caused. The plurality of sets of the top bending assembly are used together to top bend the steel bar, so as to top out corresponding arc-shaped grooves at different positions of the steel bar. The arc-shaped steel bar no longer needs to be manually moved and positioned, the top bending of each position of the steel bar is realized at one time, the workload of manually moving the steel bar and the positioning error of visual observation are reduced, the manual workload is greatly reduced, and the precision is improved.

[0011] Preferably, the base is connected with a reinforcing strip, and the first limiting wheel, the second limiting wheel, the third limiting wheel and the fourth limiting wheel are all connected with the reinforcing strip.

[0012] By using the above technical scheme, the reinforcing strip can further fix the first limiting wheel, the second limiting wheel, the third limiting wheel and the fourth limiting wheel on the base, improve the stability of the positions of the four wheels, and improve the accuracy of the top bending position of the steel bar.

[0013] Preferably, the first limiting wheel, the second limiting wheel, the third limiting wheel and the fourth limiting wheel are all provided with a replaceable wear-resistant sleeve.

[0014] By using the above technical scheme, the wear-resistant sleeve has high hardness through heat treatment, and the wear-resistant sleeve rolls and rubs along the limiting wheels, so that the wear of the limiting wheels is reduced, and the steel bar has good ductility when top bending.

[0015] Preferably, the top wheel is detachably connected to the piston rod of the top bending oil cylinder.

[0016] By using the above technical scheme, when the top wheel is damaged, the top wheel can be replaced, and the maintenance cost is reduced. Meanwhile, different diameters of the top wheel can be replaced, so that arc-shaped grooves with different radii can be top out on the steel bar, and the practicability is improved.

[0017] Preferably, the top wheel is connected with a mounting bracket, and the mounting bracket is locked to the piston rod by a bolt and a nut.

[0018] By using the above technical scheme, the bolt passes through the mounting bracket and the piston rod of the top bending oil cylinder, and then cooperates with the nut to fix the top wheel.

[0019] Preferably, the base is provided with a guide groove in the moving direction of the top wheel, and the top wheel is located in the guide groove.

[0020] By adopting the technical scheme, the top wheel can be subjected to a reaction force during the bending process, the guide groove can guide the movement of the top wheel, and the bending effect of the top wheel is improved.

[0021] Preferably, the base is made of Q235 steel plate material.

[0022] Preferably, the ejector is connected to the base, and the ejector is used to eject the bent steel bar.

[0023] By adopting the technical scheme, after the steel bar is bent by the bending assembly, the ejector can be used to eject the steel bar on the base, the staff can conveniently take down the steel bar, the degree of automation is improved, and the labor intensity of the staff is reduced.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] (1) By arranging the bending assembly, the bending assembly can position and bend the steel bar, effectively improve the production efficiency, and reduce the labor intensity of the staff.

[0026] (2) By arranging the reinforcing strip, the reinforcing strip can further fix the first limiting wheel, the second limiting wheel, the third limiting wheel and the fourth limiting wheel on the base, improve the stability of the positions of the four, and improve the bending effect of the steel bar.

[0027] (3) By arranging the wear-resistant sleeve, the wear-resistant sleeve can reduce the wear of the limiting wheel, and the steel bar has good ductility when being bent. SUMMARY

[0028] Figure 1 is a structure schematic view of the bending machine in the embodiment of the present application;

[0029] Figure 2 is a structure schematic view of the bent steel bar in the embodiment of the present application;

[0030] Figure 3 is a structure schematic view of the ejector in the embodiment of the present application.

[0031] Reference signs: 1, base; 2, bending assembly; 21, bending oil cylinder; 22, top wheel; 23, first limiting wheel; 24, second limiting wheel; 25, third limiting wheel; 26, fourth limiting wheel; 3, limiting groove; 4, reinforcing strip; 5, mounting frame; 6, ejector. DETAILED DESCRIPTION

[0032] In the following, the technical solutions of the present application will be described with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part but not all of the embodiments of the present application. The present application can be implemented in various different forms and is not limited to the described embodiments.

[0033] In the description of the present application, the expressions of “one embodiment”, “some embodiments”, “an example”, “a specific example” or “some examples” etc. mean that the specific features, structures, materials or characteristics represented in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any appropriate manner in any one or more embodiments or examples.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for describing specific embodiments only and is not intended to be limiting of the present application; the terms “comprising” and “having”, and any variations thereof, as used in the specification and claims herein, are intended to cover both the inclusive and exclusive aspects of the terms.

[0035] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection; can also be detachable connection; or integrated; or mechanical connection. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0036] In the following, some embodiments of the present application will be described in detail with reference to the drawings. Those skilled in the art can combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples without conflict.

[0037] The embodiments of the present application disclose a bending machine for reinforcing steel bars. Referring to Figure 1The top bending machine comprises a base 1 and a top bending assembly 2. The base 1 is used as a support carrier and is made of Q235 steel plate material, so that the base 1 is not easy to be damaged and the service life is prolonged. The top bending assembly 2 is installed on the base 1 and is used for positioning and top bending of the steel bar. Specifically, the top bending assembly 2 comprises a top bending oil cylinder 21, a top wheel 22, a first limiting wheel 23, a second limiting wheel 24, a third limiting wheel 25 and a fourth limiting wheel 26. The top bending oil cylinder 21 is fixedly connected to the base 1, the top wheel 22 is connected to the piston rod of the top bending oil cylinder 21, and the top bending oil cylinder 21 can control the linear movement of the top wheel 22. The first limiting wheel 23, the second limiting wheel 24, the third limiting wheel 25 and the fourth limiting wheel 26 are sequentially arranged along the arc direction, and the four limiting wheels form a limiting groove 3 for limiting the steel bar.

[0038] The first limiting wheel 23 and the fourth limiting wheel 26 are located on one side of the steel bar, the second limiting wheel 24 and the third limiting wheel 25 are located on the other side of the steel bar, and the top wheel 22 is used for top bending of the steel bar between the second limiting wheel 24 and the third limiting wheel 25.

[0039] During production, the staff first places the steel bar in the limiting groove 3. One side of the steel bar is blocked by the first limiting wheel 23 and the fourth limiting wheel 26, and the other side is blocked by the second limiting wheel 24 and the third limiting wheel 25, so as to realize positioning of the steel bar. Then the top bending oil cylinder 21 is operated, the piston rod of the top bending oil cylinder 21 is elongated to drive the top wheel 22 to gradually approach the steel bar, and under the action of pressure, the steel bar is top bent and formed (as shown in Figure 2 The production efficiency is effectively improved, and the labor intensity is reduced.

[0040] As shown in the figure, the number of the top bending assembly 2 in the embodiment is three groups, and the three groups of top bending assemblies 2 are distributed on the base 1 along the arc direction, and the three groups of top bending assemblies 2 are used for top bending at different positions of the steel bar. Since multiple point top bending needs to be performed on the steel bar during production, the relative position of the steel bar and the top bending assembly 2 needs to be manually adjusted by artificial each time after completing the top bending, which is easy to cause errors. The groups of top bending assemblies 2 are collectively used for top bending of the steel bar, so as to top out the corresponding arc-shaped grooves at different positions of the steel bar. The arc-shaped steel bar no longer needs to be manually moved and positioned, the top bending of each position of the steel bar is realized at one time, the workload of manually moving the steel bar and the positioning error of visual observation are reduced, the labor intensity is greatly reduced, and the production precision is improved.

[0041] In this embodiment, the outer surfaces of the first limiting wheel 23, the second limiting wheel 24, the third limiting wheel 25 and the fourth limiting wheel 26 are provided with wear-resistant sleeves (not shown in the figure). The wear-resistant sleeves can reduce the wear of the limiting wheels, make the reinforcing bar have better ductility when being top bent, and prevent the reinforcing bar from being broken. The first limiting wheel 23, the second limiting wheel 24, the third limiting wheel 25 and the fourth limiting wheel 26 are further connected with the reinforcing strips 4, the reinforcing strips 4 further fix the first limiting wheel 23, the second limiting wheel 24, the third limiting wheel 25 and the fourth limiting wheel 26 on the base 1, and improve the stability of the positions of the four. In some embodiments, the base 1 is further provided with a guide groove, the guide groove is arranged along the moving direction of the top wheel 22, and the top wheel 22 is located in the guide groove. The top wheel 22 can be subjected to a reaction force during the top bending process. By additionally arranging the guide groove, the guide groove can guide the movement of the top wheel 22, and improve the top bending effect of the top wheel 22.

[0042] In addition, in some embodiments, the top wheel 22 is detachably connected to the piston rod of the top bending oil cylinder 21. The top wheel 22 is fixedly connected with the mounting frame 5, and the mounting frame 5 is locked on the piston rod by bolts and nuts. The bolts pass through the mounting frame 5 and the piston rod of the top bending oil cylinder 21, and then cooperate with the nuts to complete the fixation of the top wheel 22. When the top wheel 22 is damaged, the top wheel 22 can be replaced, thereby reducing the maintenance cost. Meanwhile, different diameters of the top wheel 22 can be replaced, so as to top out arc-shaped grooves with different radii on the reinforcing bar, and improve the practicability.

[0043] Based on the above embodiments, please combine Figure 3 The base 1 of the embodiment of the application is further provided with the ejecting piece 6, and the ejecting piece 6 is used for ejecting the bent reinforcing bar. The ejecting piece 6 is installed on the base 1, and the ejecting piece 6 is used for being abutted on the end of the reinforcing bar. The ejecting piece 6 is a small hydraulic oil cylinder, and the piston rod of the ejecting piece 6 is used for ejecting the reinforcing bar on the base 1 by a distance. As shown in the figure, two groups of ejecting pieces 6 are arranged in the embodiment, and the two ejecting pieces 6 are respectively located at the two ends of the reinforcing bar. After the reinforcing bar passes through the top bending assembly 2 and is top bent, the ejecting piece 6 can be used to eject the reinforcing bar on the base 1, so as to facilitate the worker to take down the reinforcing bar, improve the automation degree, and reduce the labor intensity of the worker.

[0044] The implementation principle of the top bending machine for the reinforcing bar in the embodiment of the application is as follows: during production, the worker first places the reinforcing bar in the limiting groove 3, one side of the reinforcing bar is subjected to the blocking action of the first limiting wheel 23 and the fourth limiting wheel 26, and the other side of the reinforcing bar is subjected to the blocking action of the second limiting wheel 24 and the third limiting wheel 25, so as to realize the positioning of the reinforcing bar. Then the top bending oil cylinder 21 is operated, the piston rod of the top bending oil cylinder 21 is elongated, so as to drive the top wheel 22 to gradually approach the reinforcing bar, and the reinforcing bar is top bent and formed under the action of the pressure, thereby effectively improving the production efficiency and reducing the labor intensity of the worker.

[0045] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A bar bender for reinforcing steel, characterised in that, The utility model provides a steel bar bending device, including base (1) and top bending assembly (2), top bending assembly (2) is located on base (1), and is used for bending steel bar, top bending assembly (2) includes top bending oil cylinder (21), top wheel (22), first limiting wheel (23), second limiting wheel (24), third limiting wheel (25) and fourth limiting wheel (26), top wheel (22) is connected on the piston rod of top bending oil cylinder (21), first limiting wheel (23), second limiting wheel (24), third limiting wheel (25) and fourth limiting wheel (26) are sequentially arranged and form limiting groove (3), and limiting groove (3) is used for limiting steel bar, First limiting wheel (23) and fourth limiting wheel (26) are located on one side of steel bar, second limiting wheel (24) and third limiting wheel (25) are located on the other side of steel bar, and top wheel (22) is used for bending steel bar between second limiting wheel (24) and third limiting wheel (25).

2. A bar bender as claimed in claim 1 wherein, Top bending assembly (2) is equipped with several groups, and each top bending assembly (2) is distributed on base (1) along the arc direction.

3. A bar bender as claimed in claim 1 wherein, It also includes a reinforcing strip (4) connected to the base (1), and the first limiting wheel (23), the second limiting wheel (24), the third limiting wheel (25) and the fourth limiting wheel (26) are all connected with the reinforcing strip (4).

4. A bar bender as claimed in claim 1 wherein, The first limiting wheel (23), the second limiting wheel (24), the third limiting wheel (25) and the fourth limiting wheel (26) are all provided with replaceable wear-resistant sleeves.

5. A bar bender as claimed in claim 1 wherein, The top wheel (22) is detachably connected to the piston rod of the top bending oil cylinder (21).

6. A bar bender as claimed in claim 5 wherein, The top wheel (22) is connected with a mounting bracket (5), and the mounting bracket (5) is locked on the piston rod by bolts and nuts.

7. A bar bender as claimed in claim 1 wherein, The base (1) is provided with a guide groove in the direction of movement of the top wheel (22), and the top wheel (22) is located in the guide groove.

8. A bar bender as claimed in claim 1 wherein, The base (1) is made of Q235 steel plate material.

9. A bar bender as claimed in claim 1 wherein, It also includes an ejector (6) connected to the base (1), and the ejector (6) is used to eject the bent steel bar.

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