Bending and correcting equipment for profile steel

Abstract

The utility model relates to the technical field of section steel bending and correcting equipment, in particular to section steel bending and correcting equipment which comprises a bottom plate, a temperature control electric heating ring and a supporting frame which are fixedly installed on the bottom plate, an air cylinder is fixedly installed on a top plate body of the supporting frame, and a steel plate is fixedly installed at the tail end of a telescopic shaft of the air cylinder. A correcting pressing head is detachably installed on the bottom face of the steel plate, a supporting table is arranged under the correcting pressing head, the supporting table is fixedly installed on the bottom plate, inner grooves are formed in the left side and the right side of the supporting table, a machining table top is arranged on the top face of the supporting table, and a lower pressing die is detachably installed on the top face of the supporting table. The correction device is convenient for correction operation after heating, and has the advantage of ensuring that the correction process is carried out stably.

Description

Technical Field

[0001] This utility model relates to the technical field of steel bending and straightening equipment, specifically, to a bending and straightening equipment for steel profiles. Background Technology

[0002] Structural steel, as an important building and machinery manufacturing material, is widely used in industrial production. However, during the processing, transportation, and use of structural steel, it is prone to bending and deformation due to external forces, temperature changes, and other factors, affecting its performance and precision. To ensure the quality and applicability of structural steel, it is necessary to perform straightening treatment on deformed structural steel.

[0003] Traditional steel bending and straightening methods mainly rely on manual labor. Manual straightening is inefficient, labor-intensive, and difficult to guarantee accuracy. Currently, in order to save manpower and improve efficiency, mechanized bending and straightening equipment is usually used for bending and straightening operations.

[0004] Utility model patent CN212397706U discloses a C-shaped steel straightening device, including a base with an opening slot on one side. A fixing nut is fixedly connected inside the opening slot. A back support plate is fixedly connected to the upper part of the back of the base, and a rotating plate is fixedly connected to one side of the upper front of the base. A rotating groove is formed inside the upper part of the rotating plate. This C-shaped steel straightening device raises the height of the rotating nut by rotating it. Simultaneously, a spring is fixedly connected to the lower part of the top plate. Under the elastic support of the spring, the top plate is lifted, thus increasing its height. By changing the height of the top plate, it can effectively straighten C-shaped steel with different degrees of curvature, reducing secondary operations, improving bending efficiency, reducing manual labor, and increasing the flexibility and practicality of the device.

[0005] While this technical solution offers advantages such as improved bending efficiency and reduced manual operation, increasing the flexibility and practicality of the device, most current bending and straightening equipment still has certain shortcomings in the bending and straightening process. Most equipment directly places the steel profile into the corresponding straightening area and then uses pressure to compress the steel profile to achieve the bending and straightening effect. This method cannot heat the bending and straightening area of ​​the steel profile. Since the plasticity of steel profiles is low at room temperature, direct compression straightening can easily cause cracks and fractures, affecting the bending and straightening effect. Therefore, we propose a bending and straightening device for steel profiles. Utility Model Content

[0006] The purpose of this invention is to provide a bending and straightening device for structural steel to solve the defects mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A bending and straightening device for structural steel includes a base plate, on which a temperature-controlled electric heating coil is fixedly installed. A support frame is also fixedly installed on the base plate. A cylinder is fixedly installed on the top plate of the support frame. A steel plate is fixedly installed at the end of the telescopic shaft of the cylinder. A straightening pressure head is detachably installed on the bottom surface of the steel plate. A support platform is provided directly below the straightening pressure head. The support platform is fixedly installed on the base plate. Inner grooves are provided on both the left and right sides of the support platform. A processing table is provided on the top surface of the support platform. A lower pressing die is detachably installed on the top surface of the support platform.

[0009] Preferably, two symmetrical guide rods are fixedly installed on the upper surface of the steel plate, and the guide rods pass through the top plate of the support frame and are slidably connected to the support frame.

[0010] Preferably, the top plate of the support frame is provided with two symmetrical guide holes on the left and right sides, and the guide rod passes through the guide holes and is slidably connected to the guide holes;

[0011] The above two settings can make the steel plate more stable during the up and down movement.

[0012] Preferably, the cross-section of the support platform is I-shaped, and the length of the top plate of the support platform is greater than the length of the bottom plate;

[0013] This feature allows the side of a portion of the steel section to be pressed against the top plate of the support platform for correction.

[0014] Preferably, a plurality of support columns are fixedly installed at the bottom of the base plate, and a reinforcing base is fixedly installed at the bottom end of the support columns.

[0015] Preferably, a straightening pressure head storage box is fixedly installed on the upper surface of the base plate, and the straightening pressure head storage box is provided with a storage chamber whose top is connected to the outside.

[0016] Preferably, a top cover is hinged to the top surface of the rear panel of the correction pressure head storage box, and the top cover covers the top surface of the correction pressure head storage box when closed.

[0017] The above two settings can effectively store the correction pressure head.

[0018] Preferably, the temperature-controlled electric heating coil is located between the straightening pressure head storage box and the support frame, and the lower pressure mold is fixedly connected to the support platform by multiple fastening bolts.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, by setting a temperature-controlled electric heating coil on the base plate, achieves the function of heating the steel section before bending and straightening, effectively improving the plasticity of the steel section during the straightening process. It avoids the cracking and fracture of the steel section caused by direct compression straightening at room temperature, ensuring the structural integrity of the steel section, thereby significantly improving the bending and straightening effect, ensuring that the quality of the straightened steel section meets the standards and usage requirements.

[0021] 2. This utility model utilizes a guide rod on the steel plate at the end of the cylinder telescopic shaft, which slides into a guide hole on the support frame. This makes the steel plate more stable during its up-and-down movement, ensuring the accurate positioning of the straightening head when applying pressure to the steel profile and preventing deviation. Simultaneously, the support platform employs a unique "I"-shaped cross-section design and a structure where the top plate is longer than the bottom plate. This allows part of the steel profile's side to rest against the top plate of the support platform for straightening, providing stable support and a point of force. Working in conjunction with the stably moving straightening head, this ensures a smooth straightening process, improving both accuracy and efficiency.

[0022] 3. This utility model achieves effective storage and management of the straightening pressure heads by setting up a straightening pressure head storage box and its hinged top cover. When the equipment is not in use or the straightening pressure heads need to be replaced, the straightening pressure heads can be placed in the storage chamber, the top cover closed, and properly stored to prevent the straightening pressure heads from being impacted, worn, or contaminated, thus extending the service life of the straightening pressure heads. At the same time, the orderly storage makes it easy for operators to quickly find the required straightening pressure heads, improving the convenience of work and the efficiency of equipment maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of the present invention;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Base plate; 10. Support column; 11. Reinforced base; 12. Correction pressure head storage box; 121. Storage chamber; 13. Top cover; 14. Support frame; 141. Guide hole;

[0028] 2. Temperature-controlled electric heating coil;

[0029] 3. Support table; 30. Recessed groove; 31. Machining table surface;

[0030] 4. Lower pressing die;

[0031] 5. Cylinder; 50. Steel plate; 51. Guide rod; 52. Straightening pressure head. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-3 This utility model provides a technical solution: a bending and straightening device for structural steel, including a base plate 1, on which a temperature-controlled electric heating coil 2 is fixedly installed. This coil heats the structural steel before bending and straightening, effectively improving its plasticity. This prevents cracks and fractures during the straightening process, ensuring the structural integrity of the steel, significantly improving the bending and straightening effect and quality, and ensuring that the straightened steel meets usage requirements.

[0034] In this embodiment, a support frame 14 is also fixedly installed on the base plate 1. A cylinder 5 is fixedly installed on the top plate of the support frame 14. A steel plate 50 is fixedly installed at the end of the telescopic shaft of the cylinder 5. A straightening pressure head 52 is detachably installed on the bottom surface of the steel plate 50. A support platform 3 is provided directly below the straightening pressure head 52. The support platform 3 is fixedly installed on the base plate 1. Inner grooves 30 are provided on both the left and right sides of the support platform 3. A processing table 31 is provided on the top surface of the support platform 3. A pressing mold 4 is detachably installed on the top surface of the support platform 3, so that the cylinder 5 can stably output power when working, driving the steel plate 50 at the end of the telescopic shaft and the straightening pressure head 52 to perform precise pressing and straightening operations, ensuring the stability and reliability of the straightening process.

[0035] like Figure 1 and Figure 2 As shown, the lower pressure mold 4 and the support platform 3 are fixedly connected by multiple fastening bolts, and the straightening pressure head 52 and the steel plate 50 are detachably connected by multiple fastening bolts, realizing the flexible replacement of the straightening pressure head 52 and the lower pressure mold 4. According to different specifications and shapes of steel, the appropriate straightening pressure head 52 and the lower pressure mold 4 can be selected for straightening, which improves the adaptability of the equipment to the straightening of diverse steel profiles and meets different production needs.

[0036] like Figure 2As shown, two symmetrical guide rods 51 are fixedly installed on the upper surface of the steel plate 50. The guide rods 51 pass through the top plate of the support frame 14 and are slidably connected to the support frame 14. The top plate of the support frame 14 has two symmetrical guide holes 141. The guide rods 51 pass through the guide holes 141 and are slidably connected to the guide holes 141, so that the steel plate 50 is accurately guided during its up and down movement, effectively avoiding shaking and deviation. This ensures that the straightening pressure head 52 is accurately positioned when applying pressure to the steel section, improving the stability and accuracy of the straightening operation.

[0037] like Figure 3 As shown, the cross-section of the support platform 3 is I-shaped, and the length of the top plate of the support platform 3 is greater than the length of the bottom plate, allowing the side parts of some steel sections to be pressed against the top plate of the support platform 3 for straightening operations. This unique structural design expands the straightening range of steel sections of different shapes and locations, enhancing the versatility and practicality of the equipment.

[0038] like Figure 1 As shown, multiple support columns 10 are fixedly installed at the bottom of the base plate 1, and a reinforcing base 11 is fixedly installed at the bottom end of the support columns 10, providing stable support for the entire straightening equipment and improving the stability and shock resistance of the equipment. This ensures that the equipment remains stable during operation, avoids affecting the straightening effect due to shaking, and extends the service life of the equipment.

[0039] like Figure 1 As shown, a straightening pressure head storage box 12 is fixedly installed on the upper surface of the base plate 1. The straightening pressure head storage box 12 has a storage chamber 121 with its top communicating with the outside. A top cover 13 is hinged to the top surface of the rear side plate of the straightening pressure head storage box 12. When the top cover 13 is closed, it covers the top surface of the straightening pressure head storage box 12, allowing the straightening pressure head 52 to be properly stored when the equipment is not in use or when the straightening pressure head is being replaced. This prevents the straightening pressure head 52 from being impacted, worn, or contaminated, facilitates the orderly management of the straightening pressure head 52, extends its service life, and allows operators to quickly access it.

[0040] like Figure 1 As shown, the temperature-controlled electric heating coil 2 is located between the correction head storage box 12 and the support frame 14, making the overall structure of the equipment compact and reasonable.

[0041] Finally, it should be noted that the cylinder 5, the corresponding control system, and the external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0042] When using the bending and straightening equipment for steel profiles of this utility model, firstly, according to the specifications of the steel profile to be straightened and the straightening requirements, the appropriate lower pressure mold 4 is installed on the top surface of the support platform 3 by tightening bolts, and a suitable straightening pressure head 52 is taken out from the storage chamber 121 of the straightening pressure head storage box 12 and installed on the bottom surface of the steel plate 50.

[0043] The steel profile to be straightened is passed through the temperature-controlled electric heating coil 2, ensuring that the straightening part is within the heating coil 2. The heating coil 2 is then turned on to heat the steel profile, improving its plasticity. Once the steel profile has reached the appropriate temperature, it is removed, and the straightening part is placed on the lower pressure mold 4. The cylinder 5 on the top plate of the support frame 14 is activated. The telescopic shaft of the cylinder 5 drives the steel plate 50 downward. Because the guide rod 51 on the steel plate 50 is slidably connected to the guide hole 141 on the support frame 14, the stability of the movement of the steel plate 50 is ensured. As the steel plate 50 descends, the straightening pressure head 52 applies pressure to the steel profile, cooperating with the lower pressure mold 4 to complete the bending and straightening operation.

[0044] After the straightening is completed, the cylinder 5 retracts, causing the straightening pressure head 52 to rise and reset. The straightened steel profile is then removed. If it is necessary to replace the straightening pressure head 52 or the lower pressure mold 4, the two can be disassembled separately. The used straightening pressure head 52 should be placed back into the straightening pressure head storage box 12 for proper storage.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bending and straightening device for structural steel, comprising a base plate (1), characterized in that: A temperature-controlled electric heating coil (2) is fixedly installed on the base plate (1). A support frame (14) is also fixedly installed on the base plate (1). A cylinder (5) is fixedly installed on the top plate of the support frame (14). A steel plate (50) is fixedly installed at the end of the telescopic shaft of the cylinder (5). A straightening pressure head (52) is detachably installed on the bottom surface of the steel plate (50). A support platform (3) is provided directly below the straightening pressure head (52). The support platform (3) is fixedly installed on the base plate (1). An inner groove (30) is provided on both the left and right sides of the support platform (3). A processing table (31) is provided on the top surface of the support platform (3). A lower pressing mold (4) is detachably installed on the top surface of the support platform (3).

2. The bending and straightening equipment for structural steel according to claim 1, characterized in that: Two symmetrical guide rods (51) are fixedly installed on the upper surface of the steel plate (50). The guide rods (51) pass through the top plate of the support frame (14) and are slidably connected to the support frame (14).

3. The bending and straightening equipment for structural steel according to claim 2, characterized in that: The top plate of the support frame (14) is provided with two symmetrical guide holes (141) on the left and right sides. The guide rod (51) passes through the guide holes (141) and is slidably connected to the guide holes (141).

4. The bending and straightening equipment for structural steel according to claim 1, characterized in that: The cross-section of the support platform (3) is in the shape of an "I" and the length of the top plate of the support platform (3) is greater than the length of the bottom plate.

5. The bending and straightening equipment for structural steel according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly installed with multiple support columns (10), and the bottom end of the support column (10) is fixedly installed with a reinforcing base (11).

6. The bending and straightening equipment for structural steel according to claim 1, characterized in that: A correction pressure head storage box (12) is fixedly installed on the upper surface of the base plate (1), and the correction pressure head storage box (12) is provided with a storage chamber (121) whose top is connected to the outside.

7. The bending and straightening equipment for structural steel according to claim 6, characterized in that: A top cover (13) is hinged to the top surface of the rear panel of the correction pressure head storage box (12). When the top cover (13) is closed, it covers the top surface of the correction pressure head storage box (12).

8. The bending straightening equipment for structural steel according to claim 6, characterized in that: The temperature-controlled electric heating coil (2) is located between the correction head storage box (12) and the support frame (14), and the lower pressing mold (4) is fixedly connected to the support platform (3) by multiple fastening bolts.

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