Multi-roller straightening device for steel bar machining

Abstract

The utility model relates to the technical field of reinforcing steel bar straightening, in particular to a multi-roller straightening device for reinforcing steel bar processing, which comprises a rack, and a guide component, a first vertical straightening component, a horizontal straightening component and a second vertical straightening component are sequentially arranged at the top of the rack along the reinforcing steel bar conveying direction. The first vertical straightening assembly and the second vertical straightening assembly are the same in structure, the first vertical straightening assembly comprises a mounting frame, an upper straightening roller and a lower straightening roller which are correspondingly arranged up and down are arranged on the mounting frame, the lower straightening rollers of the first vertical straightening assembly and the second vertical straightening assembly are connected with a driving assembly, and guide plates are arranged on the two sides of the mounting frame. The guide assembly, the first vertical straightening assembly, the horizontal straightening assembly and the second vertical straightening assembly are sequentially arranged in the steel bar conveying direction, a coherent and comprehensive straightening process is formed, multi-direction and multi-dimensional comprehensive straightening of steel bars is achieved, the straightening effect is greatly improved, and the number of times of repeated straightening is reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel bar straightening technology, and in particular to a multi-roller straightening device for steel bar processing. Background Technology

[0002] In reinforced concrete, steel bars are an indispensable structural material, and their processing and shaping directly affect the strength, cost, quality, and construction progress of the reinforced concrete structure. Steel bar processing machinery is an essential piece of equipment in building construction. In actual production, steel bars are always produced in disc shape for easy transportation. However, the steel bars needed on construction sites are all straight, therefore straightening devices are required to straighten the disc-shaped steel bars for use in construction.

[0003] Currently, most straightening devices used in rebar processing have a single straightening direction, applying force to the rebar only in one direction. These devices cannot apply force comprehensively and evenly to the rebar from multiple directions during the straightening process, resulting in limited straightening effectiveness. Relying solely on force in one direction is insufficient to completely correct deformation, often requiring multiple straightening cycles to achieve the desired effect. This is not only inefficient but also prone to leaving deep indentations on the rebar surface, affecting its mechanical properties. Utility Model Content

[0004] The purpose of this invention is to provide a multi-roller straightening device for steel bar processing, which can solve the problems mentioned in the background art.

[0005] This utility model provides a multi-roller straightening device for steel bar processing, including a frame. A guide assembly, a first vertical straightening assembly, a horizontal straightening assembly, and a second vertical straightening assembly are sequentially arranged on the top of the frame along the steel bar conveying direction. The first and second vertical straightening assemblies have identical structures. The first vertical straightening assembly includes a vertically arranged mounting frame. An upper straightening roller and a lower straightening roller are arranged vertically on the mounting frame. The upper straightening roller is connected to the mounting frame via an upper mounting base, and the lower straightening roller is connected to the mounting frame via a lower mounting base. The lower straightening rollers of both the first and second vertical straightening assemblies are connected to a drive assembly. Guide plates are provided on both sides of the mounting frame, and guide holes are provided on each guide plate.

[0006] Preferably, the drive assembly includes a drive motor located within the frame. The output shaft of the drive motor is connected to a power wheel. The central axis of the lower straightening roller of the first vertical straightening assembly passes through the lower mounting base and connects to a first driven wheel. The central axis of the lower straightening roller of the second vertical straightening assembly passes through the lower mounting base and connects to a second driven wheel. The second vertical straightening assembly includes a second main gear. The frame has a first auxiliary wheel and a second auxiliary wheel between the first vertical straightening assembly and the second vertical straightening assembly. A transmission belt is sequentially sleeved on the power wheel, the first auxiliary wheel, the first driven wheel, the second driven wheel, and the second auxiliary wheel. Rotation of the output shaft of the drive motor can drive the first driven wheel and the second driven wheel to rotate.

[0007] Preferably, a first driving gear is provided between the lower mounting base of the first vertical straightening assembly and the first driven wheel. The first driving gear is fixedly connected to the central shaft of the lower straightening roller. The central shaft of the upper straightening roller passes through the upper mounting base and is connected to the first driven gear. The first driven gear meshes with the first driving gear.

[0008] A second driving gear is provided between the lower mounting base of the second vertical straightening assembly and the second driven wheel. The second driving gear is fixedly connected to the central shaft of the lower straightening roller. The central shaft of the upper straightening roller passes through the upper mounting base and connects to the second driven gear. The second driven gear meshes with the second driving gear.

[0009] Preferably, the guide assembly includes a support frame fixedly connected to the frame. The support frame has two parallel vertical rollers and two parallel horizontal rollers. The axes of the vertical rollers and the horizontal rollers are perpendicular to the direction of rebar conveying. A square hole is formed between the vertical rollers and the horizontal rollers. The center of the square hole coincides with the center of the direction of rebar conveying, and the side length of the square hole is greater than the diameter of the rebar.

[0010] Preferably, the horizontal straightening assembly includes a horizontal support connected to the frame, and a left straightening roller and a right straightening roller are staggered on both sides of the steel bar conveying direction on the horizontal support, and both the left straightening roller and the right straightening roller are rotatably connected to the horizontal support.

[0011] Preferably, the horizontal support has mounting grooves on both sides, and two sets of limiting posts are vertically provided on the frame corresponding to the mounting grooves. The limiting posts can pass through the mounting grooves, and the limiting posts are provided with threaded sections. The threaded sections are threadedly connected to the upper nut and the lower nut, and the horizontal support is located between the upper nut and the lower nut.

[0012] Preferably, a washer is provided between the upper nut and the lower nut and the horizontal support.

[0013] Preferably, the guide hole has a wide inlet facing the side where the reinforcing bar is fed.

[0014] Preferably, a baffle is vertically provided at the top of the frame along the end of the rebar conveying direction. The baffle is perpendicular to the rebar conveying direction and has a limiting hole through which the rebar can pass.

[0015] Preferably, a rebar cutting assembly is provided on the output side of the baffle.

[0016] Beneficial effects:

[0017] This invention forms a continuous and comprehensive straightening process by sequentially arranging a guide component, a first vertical straightening component, a horizontal straightening component, and a second vertical straightening component along the direction of rebar conveying. This achieves comprehensive straightening of rebar in multiple directions and dimensions, significantly improving the straightening effect, reducing the number of repeated straightening operations, and increasing straightening efficiency.

[0018] In this invention, the guide component can pre-guide the reinforcing bar to ensure its accurate entry into the subsequent straightening process, avoiding the impact of reinforcing bar deviation on straightening accuracy; the first vertical straightening component and the second vertical straightening component have the same structure and work together, and through the upper and lower straightening rollers arranged accordingly, they can perform multiple and continuous straightening actions on the reinforcing bar from the vertical direction, enhancing the vertical straightening force and effectively eliminating the bending deformation of the reinforcing bar in the vertical direction; the horizontal straightening component specifically corrects the deformation of the reinforcing bar in the horizontal direction. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a top view of the horizontal straightening component of this utility model.

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the guide plate of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the present invention, omitting the fixing plate on the back.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Guide assembly, 101-Support frame, 102-Vertical roller, 103-Horizontal roller, 2-First vertical straightening assembly, 201-Mounting bracket, 202-Upper straightening roller, 203-Lower straightening roller, 204-Guide plate, 205-Guide hole, 3-Horizontal straightening assembly, 301-Horizontal support, 302-Limiting post, 303-Upper nut, 304-Washer, 305-Lower nut, 306-Right straightening roller, 307-Left straightening roller, 308- 4-Second vertical straightening assembly, 5-Drive assembly, 501-First auxiliary wheel, 502-Second auxiliary wheel, 503-Transmission belt, 504-Fixing plate, 505-Power wheel, 506-Second driven wheel, 507-First driven wheel, 508-Second driving gear, 509-Second driven gear, 5010-First driving gear, 5011-First driven gear, 5012-Drive motor, 6-Baffle, 7-Rebar cutting assembly, 8-Frame. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] like Figure 1-2 As shown, a multi-roller straightening device for rebar processing includes a frame 8. The top of the frame 8 is sequentially provided with a guide assembly 1, a first vertical straightening assembly 2, a horizontal straightening assembly 3, and a second vertical straightening assembly 4 along the rebar conveying direction. The guide assembly 1 includes a support frame 101 fixedly connected to the frame 8. The support frame 101 contains two parallel vertical rollers 102 and two parallel horizontal rollers 103. The axes of the vertical rollers 102 and the horizontal rollers 103 are perpendicular to the rebar conveying direction. A square hole is formed between the vertical rollers 102 and the horizontal rollers 103, with the center of the square hole coinciding with the center of the rebar conveying direction. The side length of the square hole is greater than the diameter of the rebar, which can initially limit the position of the rebar, preventing excessive curling of the rebar and affecting the subsequent conveying process, thus ensuring smooth rebar conveying.

[0031] The first vertical straightening assembly 2 and the second vertical straightening assembly 4 have the same structure. The first vertical straightening assembly 2 includes a vertically arranged mounting frame 201. The mounting frame 201 is equipped with an upper straightening roller 202 and a lower straightening roller 203, which are arranged vertically. The upper straightening roller 202 is connected to the mounting frame 201 through an upper mounting base, and the lower straightening roller 203 is connected to the mounting frame 201 through a lower mounting base. The lower straightening rollers 203 of both the first vertical straightening assembly 2 and the second vertical straightening assembly 4 are connected to a drive assembly 5. Guide plates 204 are provided on both sides of the mounting frame 201, and guide holes 205 are provided on both guide plates 204. The guide holes 205 are wide-mouthed and face the side where the rebar is fed, which facilitates the feeding of the rebar. The guide plates on both sides of the mounting frame not only provide guidance but also straighten the rebar to a certain extent.

[0032] The drive assembly 5 includes a drive motor 5012, which is located inside the frame 8. The drive motor 5012 can be fixedly connected to the frame 8 using common connection methods such as bolts. The output shaft of the drive motor 5012 is connected to the power wheel 505 via a coupling. The central shaft of the lower straightening roller 203 of the first vertical straightening assembly 2 passes through the lower mounting base and connects to the first driven wheel 507. The central shaft of the lower straightening roller 203 of the second vertical straightening assembly 4 passes through the lower mounting base and connects to the second driven wheel 506. The second vertical straightening assembly 4 and the second main gear are also connected. The frame 8 has a first auxiliary wheel 501 and a second auxiliary wheel 502 between the first vertical straightening assembly 2 and the second vertical straightening assembly 4. A fixing plate 504 is vertically provided on the frame 8. The first auxiliary wheel 501 and the second auxiliary wheel 502 are rotatably connected to the fixing plate 504, which provides support for the first auxiliary wheel 501 and the second auxiliary wheel 502. The drive wheel 505, the first driven wheel 507, the second driven wheel 506, the first auxiliary wheel 501, and the second auxiliary wheel 502 are axially parallel. The transmission belt 503 is sequentially sleeved on the drive wheel 505, the first auxiliary wheel 501, the first driven wheel 507, the second driven wheel 506, and the second auxiliary wheel 502. The rotation of the output shaft of the drive motor 5012 can drive the first driven wheel 507 and the second driven wheel 506 to rotate, thereby driving the lower straightening roller 203 to rotate, providing power for the conveying of steel bars.

[0033] A first driving gear 5010 is provided between the lower mounting base of the first vertical straightening component 2 and the first driven wheel 507. The first driving gear 5010 is fixedly connected to the central shaft of the lower straightening roller 203. The central shaft of the upper straightening roller 202 passes through the upper mounting base and is connected to the first driven gear 5011. The first driven gear 5011 is fixedly connected to the central shaft of the upper straightening roller 202. The first driven gear 5011 meshes with the first driving gear 5010.

[0034] A second driving gear 508 is provided between the lower mounting base of the second vertical straightening component 4 and the second driven wheel 506. The second driving gear 508 is fixedly connected to the central shaft of the lower straightening roller 203. The central shaft of the upper straightening roller 202 passes through the upper mounting base and connects to the second driven gear 509. The second driven gear 509 is fixedly connected to the central shaft of the upper straightening roller 202, and the second driven gear 509 meshes with the second driving gear 508.

[0035] When the drive motor 5012 is started, the output shaft of the drive motor 5012 rotates, which drives the first driven wheel 507 and the second driven wheel 506 to rotate through the transmission belt 503, thereby driving the first driving gear 5010 and the second driving gear 508 to rotate. The first driving gear 5010 meshes with the first driven gear 5011, and the two rotate synchronously, making the power provided by the upper straightening roller 202 and the lower straightening roller 203 for the conveying of steel bars more stable during the steel bar conveying process.

[0036] The horizontal straightening assembly 3 includes a horizontal support 301 connected to the frame 8. A left straightening roller 307 and a right straightening roller 306 are alternately arranged on both sides of the steel bar conveying direction on the horizontal support 301. Both the left straightening roller 307 and the right straightening roller 306 are rotatably connected to the horizontal support 301.

[0037] The horizontal support 301 has mounting slots 308 on both sides. Two sets of limiting posts 302 are vertically mounted on the frame 8 corresponding to the mounting slots 308. The limiting posts 302 can pass through the mounting slots 308 and have threaded sections that are threadedly connected to the upper nut 303 and lower nut 305. The horizontal support 301 is located between the upper nut 303 and lower nut 305. Washers 304 are provided between the upper nut 303, lower nut 305, and the horizontal support 301. By adjusting the positions of the upper nut 303 and lower nut 305, the height of the horizontal support 301 can be adjusted to ensure that the reinforcing bar passes precisely through the center of the left straightening roller 307 and the right straightening roller 306, thus ensuring the straightening effect.

[0038] A baffle 6 is vertically installed at the top of the frame 8 along the end of the rebar conveying direction. The baffle 6 is perpendicular to the rebar conveying direction and has a limiting hole, through which the rebar can pass to ensure stable rebar output. A rebar cutting assembly 7 is installed on the output side of the baffle 6. The rebar cutting assembly 7 can be a cutter. One end of the cutter handle is rotatably connected to the baffle 6, and one side of the blade is close to the baffle 6 to facilitate clear determination of the rebar cutting length.

[0039] Work process:

[0040] When the drive motor 5012 is turned on, the output shaft of the drive motor 5012 rotates, which drives the first driven wheel 507 and the second driven wheel 506 to rotate through the transmission belt 503, thereby driving the first driving gear 5010 and the second driving gear 508 to rotate. The first driving gear 5010 meshes with the first driven gear 5011, and the two rotate synchronously.

[0041] One end of the rebar to be straightened is passed through the square hole in the guide assembly 1, and then through the guide hole 205 into the first vertical straightening assembly. The upper straightening roller 202 and the lower straightening roller 203 rotate synchronously to provide power for the rebar conveying. Then the rebar passes through the guide hole 205 again into the space between the left straightening roller 307 and the right straightening roller 306 for horizontal straightening. After leaving the horizontal straightening assembly 3, it enters the second vertical straightening assembly 4. The first vertical straightening assembly 2 and the second vertical straightening assembly 4 cooperate to ensure that the power received by the rebar during the conveying process is uniform. They can also perform comprehensive straightening of the rebar in multiple directions and dimensions, which greatly improves the straightening effect, reduces the number of repeated straightenings, and improves the straightening efficiency.

[0042] The straightened steel bar is passed through the limiting hole and output. After the steel bar is output to the target length, it is cut by the steel bar cutting component 7.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-roller straightening device for steel bar processing, characterized in that, The system includes a frame, on the top of which, along the direction of rebar conveying, are sequentially arranged a guide assembly, a first vertical straightening assembly, a horizontal straightening assembly, and a second vertical straightening assembly. The first and second vertical straightening assemblies have identical structures. The first vertical straightening assembly includes a vertically arranged mounting frame, on which are provided an upper straightening roller and a lower straightening roller, which are arranged vertically and vertically respectively. The upper straightening roller is connected to the mounting frame via an upper mounting base, and the lower straightening roller is connected to the mounting frame via a lower mounting base. The lower straightening rollers of both the first and second vertical straightening assemblies are connected to a drive assembly. Guide plates are provided on both sides of the mounting frame, and guide holes are provided on each guide plate.

2. The multi-roller straightening device for steel bar processing according to claim 1, characterized in that, The drive assembly includes a drive motor located within the frame. The output shaft of the drive motor is connected to a power wheel. The central axis of the lower straightening roller of the first vertical straightening assembly passes through the lower mounting base and connects to a first driven wheel. The central axis of the lower straightening roller of the second vertical straightening assembly passes through the lower mounting base and connects to a second driven wheel. The second vertical straightening assembly includes a second main gear. The frame has a first auxiliary wheel and a second auxiliary wheel between the first vertical straightening assembly and the second vertical straightening assembly. A transmission belt is sequentially mounted on the power wheel, the first auxiliary wheel, the first driven wheel, the second driven wheel, and the second auxiliary wheel. Rotation of the output shaft of the drive motor can drive the first driven wheel and the second driven wheel to rotate.

3. The multi-roller straightening device for steel bar processing according to claim 2, characterized in that, A first driving gear is provided between the lower mounting base of the first vertical straightening assembly and the first driven wheel. The first driving gear is fixedly connected to the central shaft of the lower straightening roller. The central shaft of the upper straightening roller passes through the upper mounting base and is connected to the first driven gear. The first driven gear meshes with the first driving gear. A second driving gear is provided between the lower mounting base of the second vertical straightening assembly and the second driven wheel. The second driving gear is fixedly connected to the central shaft of the lower straightening roller. The central shaft of the upper straightening roller passes through the upper mounting base and connects to the second driven gear. The second driven gear meshes with the second driving gear.

4. The multi-roller straightening device for steel bar processing according to claim 1, characterized in that, The guiding assembly includes a support frame fixedly connected to the frame. The support frame has two parallel vertical rollers and two parallel horizontal rollers. The axes of the vertical rollers and the horizontal rollers are perpendicular to the direction of steel bar conveying. A square hole is formed between the vertical rollers and the horizontal rollers. The center of the square hole coincides with the center of the direction of steel bar conveying, and the side length of the square hole is greater than the diameter of the steel bar.

5. The multi-roller straightening device for steel bar processing according to claim 1, characterized in that, The horizontal straightening assembly includes a horizontal support connected to the frame. A left straightening roller and a right straightening roller are staggered on both sides of the steel bar conveying direction on the horizontal support. Both the left straightening roller and the right straightening roller are rotatably connected to the horizontal support.

6. The multi-roller straightening device for steel bar processing according to claim 5, characterized in that, The horizontal support has mounting slots on both sides. The frame has two sets of limiting posts vertically corresponding to the mounting slots. The limiting posts can pass through the mounting slots. The limiting posts have threaded sections, which are threaded to the upper nut and the lower nut. The horizontal support is located between the upper nut and the lower nut.

7. The multi-roller straightening device for steel bar processing according to claim 6, characterized in that, Both the upper nut and the lower nut are provided with washers between themselves and the horizontal support.

8. The multi-roller straightening device for steel bar processing according to claim 1, characterized in that, The guide hole has a wide inlet facing the side where the reinforcing bar is fed.

9. The multi-roller straightening device for steel bar processing according to claim 1, characterized in that, A baffle is vertically provided at the top of the frame along the end of the steel bar conveying direction. The baffle is perpendicular to the steel bar conveying direction and has a limiting hole through which the steel bar can pass.

10. The multi-roller straightening device for steel bar processing according to claim 9, characterized in that, A rebar cutting assembly is installed on the output side of the baffle.

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