Calendering structure of channel steel

Abstract

The utility model discloses a calendering structure of channel steel, relates to the technical field of channel steel production, and aims to solve the technical problem that the processing efficiency is inconvenient to improve as two steps of calendering forming and bending processing are required to be performed in sequence in the forming of the current arc-shaped channel steel. A lower die assembly is rotatably mounted in the support assembly, positioning assemblies are fixedly arranged on the portions, located on the two sides of the lower die assembly, in the support assembly, the upper die assembly comprises a mounting plate, lug plates are arranged on the two sides of the lower end face of the mounting plate, and first roll shafts are rotatably mounted in the lug plates. An upper die ring is arranged in the middle of the outer edge face of the first roller shaft, first inclined face parts which are concave in the tangent plane direction are formed in the outer edge positions of the two sides of the upper die ring, and the lower die assembly comprises a second roller shaft which is rotatably installed between the support assemblies. The U-steel bending device has the advantages that the machining efficiency is improved, and plastic damage to the U-steel at the bending position is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of channel steel production, and more specifically to a channel steel rolling structure. Background Art

[0002] Channel steel is a long steel strip with a grooved cross section. It is a carbon structural steel used for construction and machinery. It is a steel section with a complex cross section. Its cross section shape is grooved. Channel steel is mainly used in building structures, curtain wall projects, mechanical equipment and vehicle manufacturing, etc. During use, it is required to have good welding, riveting performance and comprehensive mechanical properties.

[0003] At present, channel steel is mainly processed by rolling mills, which are formed by extrusion and the combination of upper and lower dies to achieve calendering. This method can generally only produce straight channel steel. In the actual production process, arc-shaped channel steel is required in some scenarios. For arc-shaped channel steel, its production process generally requires first rolling the steel plate to form a straight channel steel, and then bending the straight channel steel through a bending machine to obtain an arc-shaped channel steel. It is convenient for the arc-shaped channel steel to be directly formed, which is not conducive to improving the processing efficiency. In the process of bending the straight channel steel, since the arc-shaped channel steel is not formed in one time, the bending position of the straight channel steel is prone to plastic damage, resulting in a decrease in the structural performance of the channel steel. In view of this, we propose a calendering structure of channel steel. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a channel steel rolling structure to solve the technical problem that the current existing arc channel steel forming requires two steps of rolling forming and bending processing in sequence, which is not convenient for improving the processing efficiency.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a channel steel rolling structure, comprising a bracket assembly with an upper die assembly movably installed inside;

[0006] A lower mold assembly is rotatably mounted in the bracket assembly, and positioning assemblies are fixedly arranged on both sides of the lower mold assembly in the bracket assembly;

[0007] The upper die assembly comprises a mounting plate with ear plates on both sides of the lower end surface, a roller shaft 1 is rotatably mounted in the ear plates, an upper die ring is centrally arranged on the outer edge surface of the roller shaft 1, and an inclined portion 1 which is concave in the direction of the cut surface is formed at the outer edge positions of both sides of the upper die ring;

[0008] The lower die assembly comprises a roller shaft 2 rotatably mounted between the bracket assemblies, a lower die ring is symmetrically and detachably mounted on the outer edge surface of the roller shaft 2, a lower die groove is formed between the lower die rings, and a second inclined portion convex outwardly in the tangent direction is formed on the facing surface of the lower die ring, a channel steel body is arranged between the upper die assembly and the lower die assembly in the bracket assembly, and the second inclined portion and the first inclined portion are respectively attached to the two sides and the inner wall of the channel steel body;

[0009] A hydraulic telescopic rod for driving the upper mold assembly to move up and down is arranged on the top of the support assembly, and a motor for driving the lower mold assembly to rotate is arranged on one side of the support assembly.

[0010] The utility model designs an upper die assembly, a lower die assembly, a hydraulic telescopic rod and an electric motor, and controls the upper die assembly to move downward by the hydraulic telescopic rod, so that the upper die ring abuts against the steel plate and is pressed into the lower die groove formed between the lower die rings, and by starting the electric motor, drives the second roller shaft to rotate, thereby driving the steel plate to reciprocate, so that the steel plate is pressed into the lower die groove formed between the lower die rings in sequence in the length direction, thereby forming an arc-shaped channel steel body, realizing a one-time forming process of the arc-shaped channel steel, which is beneficial to improving the processing efficiency and reducing the plastic damage of the channel steel at the bending position.

[0011] Preferably, the support assembly includes a symmetrically arranged base plate, a support plate is symmetrically fixedly arranged on the upper end surface of the base plate, a load-bearing plate is detachably installed between the tops of the support plates, and the hydraulic telescopic rod is detachably installed on the load-bearing plate.

[0012] Preferably, a positioning groove is formed inside the bracket plate, positioning blocks are centrally arranged on both sides of the mounting plate, the positioning blocks are movably arranged in the positioning grooves, a mounting seat is centrally arranged on the upper end surface of the mounting plate, a rod body is movably extended and retracted inside the hydraulic telescopic rod, and the bottom end of the rod body is detachably connected to the mounting seat.

[0013] Preferably, both ends of the roller shaft 1 can be rotatably passed through the ear plate and the bracket plate, and a limiting ring 1 can be removably installed on the outer edge surface of the end of the roller shaft 1 extending through the bracket plate, and a rotating shaft 1 is fixedly arranged inside the roller shaft 2, and the motor is connected to the rotating shaft 1 through the motor shaft, and the rotating shaft 1 is rotatably connected to the bracket plate.

[0014] Preferably, the positioning assembly includes a roller shaft three with a positioning ring symmetrically and removably installed on the outer edge surface, and a rotating shaft 2 is fixedly arranged inside the roller shaft three. Both ends of the rotating shaft 2 extend out of the bracket plate, and a limiting ring 2 is removably installed on the outer edge surface of the end of the rotating shaft 2 extending out of the bracket plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model designs an upper die assembly, a lower die assembly, a hydraulic telescopic rod and an electric motor. The hydraulic telescopic rod is used to control the upper die assembly to move downward, so that the upper die ring abuts against the steel plate and is pressed into the lower die groove formed between the lower die rings. The electric motor is started to drive the second roller shaft to rotate, thereby driving the steel plate to deflect back and forth, so that the steel plate is pressed into the lower die groove formed between the lower die rings in sequence in the length direction, thereby forming an arc-shaped channel steel body, realizing a one-time forming process of the arc-shaped channel steel, which is beneficial to improving the processing efficiency and reducing the plastic damage of the channel steel at the bending position, and solves the problem that the existing arc-shaped channel steel needs to be formed in two steps of calendering and bending in sequence, which is not convenient for improving the processing efficiency.

[0017] 2. The utility model also forms a bevel portion 1 which is concave in the cutting direction on the outer edge positions on both sides of the upper die ring, and forms a bevel portion 2 which is convex in the cutting direction on the opposite surface of the lower die ring. The bevel portion 1 and the bevel portion 2 respectively fit the inner wall arc surface and the outer wall arc surface of the channel steel body, thereby improving the forming effect of the channel steel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the bracket assembly of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the upper mold assembly of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the utility model in which the lower die assembly, the positioning assembly and the channel steel body are in a matching state;

[0022] Figure 5 It is a cross-sectional view of the upper die assembly, the lower die assembly and the channel steel body of the utility model in a matching state;

[0023] Figure 6 For this utility model Figure 5 A magnified schematic diagram of the structure in the middle.

[0024] Description of the numbers in the figure:

[0025] 1. Bracket assembly; 101. Bottom plate; 102. Bracket plate; 103. Positioning groove; 104. Load-bearing plate; 105. Hydraulic telescopic rod; 106. Motor; 2. Upper mold assembly; 201. Mounting plate; 202. Mounting seat; 203. Positioning block; 204. Ear plate; 205. Roller shaft one; 206. Limiting ring one; 207. Upper mold ring; 208. Inclined portion one; 3. Lower mold assembly; 301. Roller shaft two; 302. Lower mold ring; 303. Rotating shaft one; 304. Inclined portion two; 4. Positioning assembly; 401. Roller shaft three; 402. Positioning ring; 403. Rotating shaft two; 404. Limiting ring two; 5. Channel steel body. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 6 As shown, the utility model relates to a rolling structure of a channel steel, comprising a support assembly 1 in which an upper die assembly 2 is movably installed, a lower die assembly 3 is rotatably installed in the support assembly 1, and positioning assemblies 4 are fixedly arranged on both sides of the lower die assembly 3 in the support assembly 1, the upper die assembly 2 comprises a mounting plate 201 with ear plates 204 on both sides of the lower end surface, a roller shaft 205 is rotatably installed in the ear plate 204, an upper die ring 207 is centrally arranged on the outer edge surface of the roller shaft 205, and the outer edges of both sides of the upper die ring 207 are formed with an inclined portion 208 that is concave in the direction of the cut surface, and the lower die assembly 3 comprises a mounting plate 201 rotatably installed on the support assembly 1 A roller shaft 2 301 is provided between the frame assemblies 1, and a lower mold ring 302 is symmetrically and detachably installed on the outer edge surface of the roller shaft 2 301, a lower mold groove is formed between the lower mold rings 302, and an inclined portion 2 304 which is convex in the tangent direction is formed on the facing surface of the lower mold ring 302, a channel steel body 5 is provided between the upper mold assembly 2 and the lower mold assembly 3 in the bracket assembly 1, the inclined portion 2 304 and the inclined portion 1 208 are respectively attached to the two sides and the inner wall of the channel steel body 5, a hydraulic telescopic rod 105 for driving the upper mold assembly 2 to move up and down is provided on the top of the bracket assembly 1, and a motor 106 for driving the lower mold assembly 3 to rotate is provided on one side of the bracket assembly 1.

[0027] In the embodiment of the present utility model, Figure 1-Figure 3 As shown, the bracket assembly 1 includes a symmetrically arranged base plate 101, a bracket plate 102 is symmetrically fixedly arranged on the upper end surface of the base plate 101, a load-bearing plate 104 is detachably installed between the tops of the bracket plates 102, a hydraulic telescopic rod 105 is detachably installed on the load-bearing plate 104, a positioning groove 103 is formed inside the bracket plate 102, positioning blocks 203 are centrally arranged on both sides of the mounting plate 201, the positioning blocks 203 are movably arranged in the positioning groove 103, a mounting seat 202 is centrally arranged on the upper end surface of the mounting plate 201, a rod body is movably retracted inside the hydraulic telescopic rod 105, and the bottom end of the rod body is detachably connected to the mounting seat 202.

[0028] In the embodiment of the present utility model, Figure 2-Figure 4 As shown, both ends of roller shaft 205 can be rotatably passed through ear plate 204 and bracket plate 102, and a limiting ring 206 can be detachably installed on the outer edge surface of the end of roller shaft 205 extending through bracket plate 102, a rotating shaft 303 is fixedly arranged inside roller shaft 2 301, and motor 106 is connected to rotating shaft 303 through a motor shaft, and rotating shaft 303 is rotatably connected to bracket plate 102.

[0029] In the embodiment of the present utility model, Figure 1 , Figure 2 and Figure 4 As shown, the positioning assembly 4 includes a roller shaft 3 401 on which a positioning ring 402 is symmetrically and removably installed on the outer edge surface, and a rotating shaft 2 403 is fixedly arranged inside the roller shaft 3 401. Both ends of the rotating shaft 2 403 extend out of the bracket plate 102, and a limiting ring 2 404 is removably installed on the outer edge surface of the end of the rotating shaft 2 403 extending out of the bracket plate 102.

[0030] Working principle: This embodiment provides a channel steel rolling structure. When in use, the steel plate is first placed between the upper mold assembly 2 and the lower mold assembly 3, and then the upper mold assembly 2 is pressed downward by starting the hydraulic telescopic rod 105, so that the steel plate is bent by the upper mold ring 207 and pressed into the lower mold groove formed between the lower mold rings 302, and the motor 106 is started to drive the roller shaft 2 301 to rotate, thereby driving the steel plate to reciprocate, so that the steel plate is pressed into the lower mold groove formed between the lower mold rings 302 in sequence in the length direction, thereby forming an arc-shaped channel steel body 5, realizing a one-time forming process of the arc-shaped channel steel, and when the roller shaft 2 301 rotates to drive the steel plate to reciprocate, the surface of the steel plate is restricted by the roller shaft 3 401 and the positioning ring 402 during the movement, thereby forming an arc structure.

[0031] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A rolled structure of a channel steel, characterized in that: It comprises a support assembly (1) in which an upper mold assembly (2) is movably installed; A lower mold assembly (3) is rotatably mounted in the support assembly (1), and positioning assemblies (4) are fixedly arranged on both sides of the lower mold assembly (3) in the support assembly (1); The upper die assembly (2) comprises a mounting plate (201) with ear plates (204) arranged on both sides of the lower end surface, a roller shaft (205) being rotatably mounted in the ear plate (204), an upper die ring (207) being centrally arranged on the outer edge surface of the roller shaft (205), and an inclined portion (208) which is concave in the direction of the cut surface is formed at the outer edge positions on both sides of the upper die ring (207); The lower mold assembly (3) comprises a roller shaft 2 (301) rotatably mounted between the support assembly (1); a lower mold ring (302) is symmetrically and detachably mounted on the outer edge surface of the roller shaft 2 (301); a lower mold groove is formed between the lower mold rings (302); and a second inclined surface (304) convex outward in the tangent direction is formed on the facing surface of the lower mold ring (302); a channel steel body (5) is arranged between the upper mold assembly (2) and the lower mold assembly (3) in the support assembly (1); and the second inclined surface (304) and the first inclined surface (208) are respectively attached to the two sides and the inner wall of the channel steel body (5); A hydraulic telescopic rod (105) for driving the upper mold assembly (2) to move up and down is arranged on the top of the support assembly (1), and a motor (106) for driving the lower mold assembly (3) to rotate is arranged on one side of the support assembly (1).

2. The rolled structure of a channel steel according to claim 1, characterized in that: The support assembly (1) comprises a symmetrically arranged base plate (101), a support plate (102) being symmetrically fixedly arranged on the upper end surface of the base plate (101), a load-bearing plate (104) being detachably mounted between the tops of the support plates (102), and the hydraulic telescopic rod (105) being detachably mounted on the load-bearing plate (104).

3. The rolled structure of a channel steel according to claim 2, characterized in that: A positioning groove (103) is formed inside the support plate (102), positioning blocks (203) are centrally arranged on both sides of the mounting plate (201), the positioning blocks (203) are movably arranged in the positioning groove (103), a mounting seat (202) is centrally arranged on the upper end surface of the mounting plate (201), a rod body is movably extended inside the hydraulic telescopic rod (105), and the bottom end of the rod body is detachably connected to the mounting seat (202).

4. The rolled structure of a channel steel according to claim 1, characterized in that: Both ends of the roller shaft 1 (205) can be rotatably passed through the ear plate (204) and the bracket plate (102), and a limit ring 1 (206) is detachably installed on the outer edge surface of the end of the roller shaft 1 (205) extending through the bracket plate (102), and a rotating shaft 1 (303) is fixedly arranged inside the roller shaft 2 (301), and the motor (106) is connected to the rotating shaft 1 (303) through the motor shaft, and the rotating shaft 1 (303) is rotatably connected to the bracket plate (102).

5. The rolled structure of channel steel according to claim 1, characterized in that: The positioning assembly (4) comprises a roller shaft three (401) on which a positioning ring (402) is symmetrically and detachably mounted on the outer edge surface, a rotating shaft two (403) is fixedly arranged inside the roller shaft three (401), both ends of the rotating shaft two (403) extend out of the bracket plate (102), and a limiting ring two (404) is detachably mounted on the outer edge surface of the end of the rotating shaft two (403) extending out of the bracket plate (102).

Images