Cold rolling forming equipment for section bar with square inside and grooved outside

Abstract

The utility model discloses cold rolling forming equipment for a section bar with a square inner part and a grooved outer part, and particularly relates to the technical field of cold rolling forming. A plane forming roller assembly, a basic forming roller assembly, a large-angle forming roller assembly and a small-angle forming roller assembly are sequentially arranged on the two sides of the conveying platform in the conveying direction, each roller assembly is composed of a plurality of rollers which are distributed on the conveying platform up and down and arranged in a staggered angle mode, and the upper rollers press steel downwards. And the lower roller is used for rolling and jacking the steel, so that the steel plate is bent and deformed step by step along the dislocation line.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling forming technology, and more specifically, to a cold rolling forming equipment for an inner square outer grooved profile. Background Technology

[0002] Cold rolling forming equipment is a type of machinery specifically designed to plastically deform metallic materials at room temperature. This equipment applies pressure through rolls, compressing the metal material to reduce its thickness and improve its microstructure, producing metal products with desired dimensions and properties. Cold rolling forming equipment is widely used in the steel industry and other metal processing fields.

[0003] The utility model patent with application number 202022426772.5, entitled "A Special-Shaped Pipe Material for Elevator Shafts," is designed by the same inventor for column pipes on our company's unique prefabricated patented shaft frame. This is the inner square outer grooved profile mentioned in this application. When this inner square outer grooved profile is used as a column of an elevator shaft frame, the horizontal or diagonal support rods between the columns on the elevator shaft frame can be installed with bolts through the holes on the inner square outer grooved profile. This greatly shortens the on-site installation process of the elevator shaft frame compared to the traditional welded elevator shaft frame, significantly improves the efficiency, and makes the overall structure more stable and aesthetically pleasing.

[0004] Due to the load-bearing characteristics of elevator shaft columns, the strength requirements for column profiles are very high. Therefore, the steel plate used to produce the inner square outer groove must have a certain thickness. In order to further increase the strength, the profile is designed to be integrally bent from a single piece of steel plate without any splicing or welding. Therefore, how to bend a whole piece of thick steel plate into the elevator shaft column profile structure disclosed in the aforementioned application through cold rolling is a very big challenge.

[0005] To address the above challenges, our company designed and developed the cold rolling forming equipment proposed in this application, which is used for cold rolling and bending of large-thickness monolithic steel plates. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a cold rolling forming equipment for inner square outer groove profiles to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cold rolling forming equipment for inner square outer groove profiles, comprising a machine body and a welding assembly. A conveying platform is provided above the machine body. A planar forming roll assembly, a basic forming roll assembly, a large-angle forming roll assembly, and a small-angle forming roll assembly are sequentially arranged on both sides of the conveying platform along the conveying direction. A conveyor belt is provided above the conveyor platform, and a conveying roller is provided above the conveyor belt. An air jet support is provided above the conveying roller. The welding assembly is located on the side of the air jet support away from the conveying roller. Support brackets are provided on both sides of the machine body.

[0008] Preferably, the welding assembly includes a butt ring, a welding box, an adjusting bracket, and a welding head, with the welding box located below the butt ring, adjusting brackets located on both sides of the welding box, and a welding head located below the welding box.

[0009] Preferably, the planar forming roll assembly includes a first deforming roll, a second deforming roll, and a third deforming roll that are distributed vertically and horizontally along the conveying direction of the conveying platform and are staggered at angles, and the basic forming roll assembly includes a first tightening roll and a second tightening roll that are distributed vertically and horizontally along the conveying direction of the conveying platform and are staggered at angles.

[0010] Preferably, a first inner arc pressing roll is provided on the side of the third deforming roll away from the second deforming roll, and a first inner groove tightening roll is provided on the side of the first inner arc pressing roll away from the second tightening roll.

[0011] Preferably, a second inner groove tightening roll is provided on the side of the first inner groove tightening roll away from the first inner arc pressing roll, and a second inner arc pressing roll is provided at the center of the second inner groove tightening roll and the first inner arc pressing roll.

[0012] Preferably, the second inner arc pressing roll includes a connecting bracket and a pressing ring, and a pressing ring is installed at the center of both sets of connecting brackets.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. Compared with existing technologies, this cold rolling forming equipment for inner square outer groove profiles uses a planar forming roll assembly, a basic forming roll assembly, a large-angle forming roll assembly, and a small-angle forming roll assembly installed on the machine body to shape excessively thick steel. The shaping process is staged. First, the steel enters the planar forming roll assembly, where the roll support installed inside further extrudes the outer surface area of ​​the steel to create the shape for subsequent processing. Then, the steel passes through the planar forming roll assembly into the basic forming roll assembly for further processing of the shaped areas. This allows the steel to complete the most basic structural forming within the basic forming roll assembly. The steel plate, after basic processing, is then sequentially fed into the large-angle forming roll assembly and the small-angle forming roll assembly. The angles between adjacent surfaces after bending are gradually corrected, ultimately forming the inner square outer groove profile with the target structure.

[0015] 2. Compared with the existing technology, this cold rolling forming equipment for inner square outer groove profiles uses welding components. When welding the gaps in the steel, the position between the welding head below the welding box and the conveyor platform support can be adjusted by adjusting the bracket, thereby avoiding the welding position from shifting. Attached Figure Description

[0016] Figure 1 This is a top view of the overall structure of this utility model.

[0017] Figure 2 This is a top view of the conveying platform of this utility model.

[0018] Figure 3 This is a schematic diagram of the welding assembly of this utility model.

[0019] Figure 4 For the milling of this utility model Figure 1 A schematic diagram of the structure at point A in the middle.

[0020] The attached figures are labeled as follows: 1. Machine body; 2. Conveying platform; 3. Conveying roller; 4. First deforming roller; 5. Connecting rod; 6. Second deforming roller; 7. Third deforming roller; 8. First tightening bracket; 9. Second tightening roller; 10. First inner arc pressing roller; 11. First inner groove tightening roller; 12. Second inner groove tightening roller; 13. Third inner groove tightening bracket; 14. Air jet bracket; 15. Support bracket; 16. Welding assembly; 17. Conveying track; 18. Connecting ring; 19. Welding box; 20. Adjusting bracket; 21. Welding head; 22. Second inner arc pressing roller; 23. Connecting bracket; 24. Pressing ring; 25. Third tightening bracket; 26. Flat forming roller assembly; 27. Basic forming roller assembly; 28. Large angle forming roller assembly; 29. ​​Small angle forming roller assembly. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0022] Example 1

[0023] As attached Figures 1 to 4 The cold rolling forming equipment for inner square outer groove profiles shown includes a machine body 1 and a welding assembly 16. A conveying platform 2 is provided above the machine body 1, and the conveying platform includes a planar forming roll assembly 26, a basic forming roll assembly 27, a large-angle forming roll assembly 28, and a small-angle forming roll assembly 29. The basic forming roll assembly 27 is provided to the right of the planar forming roll assembly 26, and the large-angle forming roll assembly 28 is provided on the side of the basic forming roll assembly 27 away from the planar forming roll assembly 26. The small-angle forming roll assembly 29 is provided on the side of the large-angle forming roll assembly 28 and the side away from the basic forming roll assembly 27. A conveyor belt 17 is provided above the conveyor belt 17, and a conveyor roller 3 is provided above the conveyor roller 3. An air jet support 14 is provided above the conveyor roller 3, and the welding assembly 16 is provided on the side of the air jet support 14 away from the conveyor roller 3. Support brackets 15 are provided on both sides of the machine body 1.

[0024] When cold rolling thick steel is required, the steel sequentially enters the planar forming roll assembly 26, the basic forming roll assembly 27, the large-angle forming roll assembly 28, and the small-angle forming roll assembly 29 for bending. First, the steel enters the planar forming roll assembly 26 via the conveyor belt 17. There, the steel is continuously squeezed and shaped by the first deforming roll 4, the second deforming roll 6, and the third deforming roll 7 inside the planar forming roll assembly 26. The first deforming roll 4, the second deforming roll 6, and the third deforming roll 7 are arranged in two sets, one above the other, with staggered angles. The steel plate is conveyed from the platform... As the steel plate passes through, the lower first deformation roll 4 rolls and lifts the outer edge of the steel plate from a slightly outward position, while the upper first deformation roll 4 rolls and presses the steel plate down from a slightly offset inner position. The subsequent second deformation roll 6 and third deformation roll 7 operate in the same way. Therefore, under the action of the upper and lower rolls, the thick steel plate is gradually bent and deformed, reaching a preliminary shape. The steel plate that has completed its preliminary forming then enters the conveyor belt 17 and is fed into the basic forming roll assembly 27. This allows the steel plate that has completed its preliminary forming to come into contact with the basic forming roll assembly 27, and the steel plate that has completed its preliminary forming continuously interacts with the first tightening roll 8 and the second tightening roll 8. Roller 9 and the first inner arc pressing roller 10, etc., come into contact to adjust the initially formed steel. Similarly, the first tightening roller 8, the second tightening roller 9, and the first inner arc pressing roller 10 are also distributed in sets on the upper and lower parts of the conveying platform 2, and are staggered at angles, to further bend the initially bent steel plate, thereby gradually correcting the curvature of the steel plate on both sides. Then, the steel that has completed basic forming is conveyed by the conveyor belt 17 into the interior of the large angle forming roller assembly 28, and then the steel that has completed basic forming comes into contact with the second inner arc pressing roller 22 and the third tightening bracket 13, etc., inside the large angle forming roller assembly 28 in sequence. This process allows the steel, after basic forming, to undergo rough forming inside the large-angle forming roll assembly 28, thereby shaping the steel structure. The rough-processed steel is then carried by the conveyor belt 17 into the small-angle forming roll assembly 29. The rough-processed steel then comes into contact with the first inner groove tightening roll 11, the second inner groove tightening roll 12, and the third inner groove tightening support 13 inside the finishing support 29, continuously shaping the concave areas of the steel. This is then combined with the welding assembly 16 to fully weld the gap areas of the steel after bending angle processing, thereby maintaining the degree of shaping of the steel.

[0025] Example 2

[0026] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0027] In a preferred embodiment, the welding assembly 16 includes a docking ring 18, a welding box 19, an adjusting bracket 20, and a welding head 21. The welding box 19 is located below the docking ring 18, and the adjusting brackets 20 are located on both sides of the welding box 19. The welding head 21 is located below the welding box 19. When using the welding assembly 16, the position of the welding box 19 on the conveying platform 2 can be adjusted by adjusting the brackets 20 according to the gap position after the steel is formed, so that the welding head 21 is aligned with the welding area, thereby avoiding welding misalignment.

[0028] In a preferred embodiment, a first deformable roller 4 is provided on the right side of the conveyor roller 3, and a connecting rod 5 is provided on the side of the first deformable roller 4 away from the conveyor roller 3. A second deformable roller 6 is provided on the side of the connecting rod 5 away from the first deformable roller 4, and a third deformable roller 7 is provided on the side of the second deformable roller 6 away from the connecting rod 5. The steel is then conveyed by the conveyor roller 3 and the conveyor belt 17. During the conveying process, the steel comes into contact with the first deformable roller 4. At this time, the steel is squeezed by the first deformable roller 4, and the contact node between the steel and the first deformable roller 4 deforms. As a result, the depth of deformation of the steel increases during subsequent contact with the second deformable roller 6 and the third deformable roller 7.

[0029] In a preferred embodiment, a first inner arc pressing roll 10 is provided on the side of the third deforming roll 7 away from the second deforming roll 6, and a first inner groove tightening roll 11 is provided on the side of the first inner arc pressing roll 10 away from the second tightening roll 9. When the steel changes its shape by passing through the roll pressing support, the steel comes into contact with the first inner arc pressing roll 10, so that the curvature of the curved area of ​​the steel is continuously tightened, thereby reducing its curvature.

[0030] In a preferred embodiment, a second inner groove tightening roller 12 is provided on the side of the first inner groove tightening roller 11 away from the first inner arc pressing roller 10, and a second inner arc pressing roller 22 is provided at the center of the second inner groove tightening roller 12 and the first inner arc pressing roller 10. Then, the first inner groove tightening roller 11 continuously tightens the steel to change the curvature after bending. Then, the second inner groove tightens the steel in a second time, so that the plastic forming area of ​​the steel is continuously tightened and deepened.

[0031] In a preferred embodiment, the second inner arc pressing roll 22 includes a connecting bracket 23 and a pressing ring 24, and a pressing ring 24 is installed at the center of both sets of connecting brackets 23. After the steel is tightened, the pressing ring 24 needs to be driven by the connecting bracket 23 to contact the inner arc area of ​​the steel, thereby increasing the curvature of the inner groove of the steel.

[0032] The working process of this utility model is as follows: First, the steel is placed inside the tightening platform, so that the steel is in contact with both the conveyor roller 3 and the conveyor belt 17. Then, the steel is continuously drawn into the conveyor platform 2 by the contact between the conveyor roller 3 and the conveyor belt 17. Next, the steel comes into contact with the first deforming roller 4. When the first deforming roller 4 squeezes the steel, it leaves marks on the outer surface of the steel. Then, the steel continuously comes into contact with the second deforming roller 6 and the third deforming roller 7, causing its shape to continuously change. After the steel comes into contact with the first tightening roller, the second tightening roller 9, and the third tightening bracket 25, its shape continues to change. The steel is compressed and altered by the material. The bent portion then contacts the first inner arc pressing roller 10 and the second inner arc pressing roller 22, causing the bending arc of the steel to be continuously tightened and changed. Then, the jet support 14 above the conveying platform 2 sprays air onto the outer surface of the steel to blow away impurities on the outer surface of the steel. Then, the two ends of the bent area of ​​the steel merge and contact each other. Then, the welding head 21 of the welding assembly 16 contacts the gap area of ​​the steel and performs full welding on the gap area, thereby completing the fixing of the steel after forming and completing the cold rolling forming of the steel. The above is the working principle of this kind of cold rolling forming equipment for inner square outer groove profile.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold rolling forming equipment for inner square outer groove profiles, comprising a machine body (1) and a welding assembly (16), characterized in that: A conveying platform (2) is provided above the machine body (1). A planar forming roll assembly (26), a basic forming roll assembly (27), a large-angle forming roll assembly (28), and a small-angle forming roll assembly (29) are arranged sequentially on both sides of the conveying direction of the conveying platform (2). A conveying track (17) is provided above the conveying platform (2). A conveying roller (3) is provided above the conveying track (17). An air jet support (14) is provided above the conveying roller (3). A welding assembly (16) is located on the side of the air jet support (14) away from the conveying roller (3). Support brackets (15) are provided on both sides of the machine body (1).

2. The cold rolling forming equipment for inner square outer grooved profiles according to claim 1, characterized in that: The welding assembly (16) includes a docking ring (18), a welding box (19), an adjusting bracket (20), and a welding head (21). The welding box (19) is located below the docking ring (18), and the adjusting brackets (20) are located on both sides of the welding box (19). The welding head (21) is located below the welding box (19).

3. The cold rolling forming equipment for inner square outer grooved profiles according to claim 1, characterized in that: The planar forming roll assembly (26) includes a first deforming roll (4), a second deforming roll (6) and a third deforming roll (7) distributed vertically and staggered along the conveying direction of the conveying platform (2), and the basic forming roll assembly (27) includes a first tightening roll (8) and a second tightening roll (9) distributed vertically and staggered along the conveying direction of the conveying platform (2).

4. The cold rolling forming equipment for inner square outer grooved profiles according to claim 3, characterized in that: The third deforming roll (7) is provided with a first inner arc pressing roll (10) on the side away from the second deforming roll (6), and the first inner arc pressing roll (10) is provided with a first inner groove tightening roll (11) on the side away from the second tightening roll (9).

5. The cold rolling forming equipment for inner square outer grooved profiles according to claim 4, characterized in that: A second inner groove tightening roller (12) is provided on the side of the first inner groove tightening roller (11) away from the first inner arc pressing roller (10), and a second inner arc pressing roller (22) is provided at the center of the second inner groove tightening roller (12) and the first inner arc pressing roller (10).

6. The cold rolling forming equipment for inner square outer grooved profiles according to claim 5, characterized in that: The second inner arc pressing roll (22) includes a connecting bracket (23) and a pressing ring (24), and a pressing ring (24) is installed at the center of both sets of connecting brackets (23).

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