Guardrail plate bending and forming apparatus

Abstract

The application relates to a guardrail plate bending forming equipment and relates to the technical field of guardrail plate processing equipment. The equipment comprises a base, a forming die roller set is arranged above the base, the forming die roller set comprises upper and lower die rollers, the outer surfaces of the middle parts of the upper and lower die rollers are arranged in a wave shape in a matched mode, and two supports are arranged at the two ends of the forming die roller set. By rotating a threaded rod, a pushing block can drive a movable support to gradually move away from a fixed support, the movable support drives corresponding transmission sleeves to move, the transmission sleeves on the movable support are separated from corresponding transmission shafts, the upper and lower die rollers are pulled, a transmission shaft arranged on the fixed support is pulled out of the corresponding transmission sleeve, the restriction on the forming die roller set is removed, the forming die roller can be conveniently replaced according to the bending forming specifications, the replacement steps are relatively simple, the time consumed when the forming die roller is replaced is relatively short, and the bending forming specifications can be quickly adapted in the production process.

Description

Technical Field

[0001] This application relates to the technical field of guardrail processing equipment, and in particular to a guardrail bending and forming equipment. Background Technology

[0002] Currently, metal sheet bending technology is widely used in industrial production, especially in the production of highway guardrails, where straight metal sheets need to be bent into specific wave shapes. This requires a guardrail bending and forming equipment to bend the metal sheets.

[0003] Existing guardrail bending equipment is inconvenient to quickly change the forming rollers according to the bending specifications. The replacement process is cumbersome and time-consuming, which affects the overall processing efficiency of guardrail bending. Utility Model Content

[0004] The purpose of this application is to provide a guardrail bending and forming equipment, which has the advantages of being able to easily replace the forming mold rollers according to the bending and forming specifications, with a relatively simple replacement step and short replacement time. It can quickly adapt to the bending and forming specifications during the production process. This solves the problem that existing guardrail bending equipment is inconvenient to quickly replace the forming mold rollers according to the bending and forming specifications, with a relatively cumbersome replacement step and a large amount of time required for replacement, which affects the overall processing efficiency of guardrail bending and forming.

[0005] The guardrail bending and forming equipment provided in this application adopts the following technical solution: A guardrail bending and forming equipment includes a base, and a forming roller group is provided above the base. The forming roller group includes an upper roller and a lower roller. The outer surfaces of the upper roller and the lower roller are mutually wavy. Two supports are provided at both ends of the forming roller group. The two supports at both ends of the forming roller group are a moving support and a fixed support, respectively. Support shafts are provided at both ends of the upper roller and the lower roller. A transmission shaft is provided at one end of the support shaft. The transmission shaft is inserted into the inner wall of the middle part of the transmission sleeve. Two adjustment components are connected to the two transmission sleeves corresponding to the two ends of the upper roller. The two adjustment components are slidably disposed on the upper part of the inner wall of the middle part of the two supports. A pushing assembly is connected between the two ends of the hydraulic rod output end. The two transmission sleeves corresponding to the two ends of the lower mold roller are set in the middle inner wall of the two second rotating rings. The two second rotating rings are rotatably set in the middle inner wall of the two second connecting plates. The two second connecting plates are respectively set in the middle inner wall of the moving bracket and the fixed bracket. One end of the fixed end of the hydraulic rod is set on the top of the fixed bracket through a fixing frame. The bottom of the fixed bracket is set on the top of the base through a fixing block. A pushing block is set at the bottom of the moving bracket. A threaded rod is threadedly connected to the middle inner wall of the pushing block. The two ends of the threaded rod are rotatably set on the top of the base through support plates. A feeding mechanism is provided on one side of the forming mold roller assembly. The feeding mechanism is set on the top of the base.

[0006] By adopting the above technical solution, rotating the threaded rod allows the push block to drive the moving bracket to gradually move away from the fixed bracket, causing the moving bracket to move the corresponding transmission sleeve. This separates the transmission sleeve on the moving bracket from the corresponding transmission shaft, pulling the upper and lower mold rollers. This pulls the transmission shaft installed on the fixed bracket out of the corresponding transmission sleeve, releasing the restriction on the forming mold roller assembly. This allows for convenient replacement of the forming mold rollers according to the bending specifications. The replacement steps are relatively simple, and the time consumed during the replacement of the forming mold rollers is short. It also allows for rapid adaptation to bending specifications during the production process.

[0007] Preferably, the adjusting component includes a first rotating ring, the inner wall of the first rotating ring is disposed on the outer surface of the transmission sleeve corresponding to the upper mold roller, the first rotating ring is rotatably disposed within the inner wall of the first connecting plate, and one end of each of the two first connecting plates at both ends of the upper mold roller is disposed at both ends of the bottom of the pushing component.

[0008] By adopting the above technical solution, the adjustment component, through the cooperation of the first rotating ring and the first connecting plate, can not only achieve stable rotation of the transmission sleeve and ensure the normal operation of the upper mold roller during work, but also, through the connection of the first connecting plate and the pushing component, allow the upper mold roller to slide synchronously with the adjustment component, making it convenient to adjust the fit gap between the upper mold roller and the lower mold roller according to processing requirements.

[0009] Preferably, the pushing assembly includes a plug-in frame and a plug plate. The plug plate is inserted into the inner wall of the middle part of the plug-in frame. One bottom end of the plug plate is fixedly connected to the top end of the first connecting plate located inside the moving bracket. One bottom end of the plug-in frame is fixedly connected to the top end of the first connecting plate located inside the fixed bracket. The top outer surface of the plug-in frame is fixedly connected to one end of the hydraulic rod output end.

[0010] By adopting the above technical solution, the insertion frame of the push component and the insertion plate are inserted and matched. When the equipment is working normally, the pushing force of the hydraulic rod can be stably transmitted, so that the two adjustment components can drive the upper mold roller to move up and down synchronously, ensuring the accuracy of the fit between the upper mold roller and the lower mold roller. When it is necessary to replace the forming mold roller group, as the moving bracket moves away from the fixed bracket, the insertion plate can be smoothly pulled out from the insertion frame without hindering the movement of the moving bracket, ensuring the normal separation of the corresponding transmission sleeve and the transmission shaft.

[0011] Preferably, two limiting plates are provided on both sides of the two first connecting plates at both ends of the upper mold roller. The inner wall of the middle part of the limiting plate is slidably disposed on the outer surface of the middle part of the limiting rod. The two ends of the limiting rods corresponding to the two ends of the upper mold roller are respectively disposed on the inner wall of the middle part of the moving bracket and the fixed bracket through two fixing plates.

[0012] By adopting the above technical solution, the cooperation of the limiting plate and the limiting rod can accurately limit the sliding direction of the first connecting plate, avoid the first connecting plate from shifting or shaking during the up and down movement, ensure the stability and accuracy of the cooperation between the upper and lower mold rollers, and improve the accuracy of the guardrail bending and forming. At the same time, the cooperation of the limiting plate and the limiting rod can make the adjusting component stably installed inside the bracket, so that the moving bracket can stably drive the corresponding adjusting component to move when it moves.

[0013] Preferably, two limiting blocks are provided at both ends of the bottom of the pushing block, and the outer surface of the middle part of the two limiting blocks is slidably disposed in the inner wall of the middle part of the two limiting frames, which are disposed on the top of the base.

[0014] By adopting the above technical solution, the cooperation of the limiting block and the limiting frame can strictly limit the movement trajectory of the pushing block, prevent the pushing block from causing the moving bracket to tilt at an angle when the threaded rod rotates, ensure that the moving bracket can stably approach or move away from the fixed bracket along a straight line, and ensure that the transmission sleeve on the moving bracket can accurately separate or connect with the corresponding transmission shaft, thereby improving the convenience and accuracy of operation when changing the mold roller.

[0015] Preferably, the base is provided with multiple sets of molding rollers, and the multiple sets of molding rollers are configured with different molding specifications.

[0016] By adopting the above technical solution and setting up multiple forming mold roller groups, the equipment can quickly switch the corresponding forming mold roller groups according to different guardrail bending and forming specifications, without the need to temporarily replace the forming mold roller groups. This further shortens the time to adapt to different production needs, improves the equipment's ability to respond quickly to diversified production tasks, and improves overall production efficiency.

[0017] Preferably, the bracket has two support seats on the side near the forming roller assembly via a fixing frame. The top of the support seat is open, the support seat is located below the support shaft, and the inner wall of the inner side of the support seat is slidably connected to the outer surface of the middle part of the support shaft.

[0018] By adopting the above technical solution, the support seat can provide temporary support for the support shaft during the installation or replacement of the forming mold roller assembly, avoiding the difficulty of connecting the transmission shaft and the transmission sleeve due to the support shaft sagging under gravity. When replacing the forming mold roller assembly, there is no need to lift the upper and lower mold rollers for a long time. At the same time, when the mold roller is working, the sliding fit between the support seat and the support shaft will not affect the normal rotation of the mold roller. This not only improves the convenience of mold roller replacement and installation, but also ensures the stability of the equipment during operation.

[0019] Preferably, the outer surface of the middle part of the drive shaft is polygonal, and the shape of the outer surface of the middle part of the drive shaft is adapted to the shape of the inner wall of the middle part of the drive sleeve.

[0020] By adopting the above technical solution, the polygonal drive shaft and the matching drive sleeve can ensure stable power transmission between the two, avoid slippage during the rotation of the mold roller, ensure synchronous operation of the upper and lower mold rollers, and improve the consistency of the guardrail bending and forming. At the same time, the polygonal structure facilitates quick separation and insertion of the drive shaft and the drive sleeve. When replacing the mold roller, the two can be separated and connected simply by pulling, which further simplifies the replacement steps and shortens the replacement time.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This guardrail bending and forming equipment, by rotating the threaded rod, allows the pushing block to drive the moving bracket to gradually move away from the fixed bracket, causing the moving bracket to move the corresponding transmission sleeve, separating the transmission sleeve on the moving bracket from the corresponding transmission shaft, pulling the upper and lower die rollers, and pulling the transmission shaft installed on the fixed bracket out from the corresponding transmission sleeve, thus releasing the restriction on the forming die roller group. This allows for convenient replacement of the forming die rollers according to the bending and forming specifications, with a relatively simple replacement process and short replacement time. It can quickly adapt to the bending and forming specifications during the production process. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present application; Figure 2 This is a schematic diagram of the front structure of this application; Figure 3 This is a schematic diagram of the structure on the right side of this application; Figure 4 This is an exploded view of a partial structure of this application; Figure 5 This is a schematic diagram showing the separation of the moving support and the fixed support in this application.

[0023] In the picture: 1. Base; 2. Forming roller assembly; 201. Upper mold roller; 202. Lower mold roller; 3. Support; 301. Moving support; 302. Fixed support; 4. Support shaft; 5. Transmission shaft; 6. Transmission sleeve; 7. Adjustment assembly; 701. First rotating ring; 702. First connecting plate; 703. Limiting plate; 704. Limiting rod; 8. Pushing assembly; 801. Insertion frame; 802. Insertion plate; 9. Hydraulic rod; 10. Second rotating ring; 11. Second connecting plate; 12. Pushing block; 13. Threaded rod; 14. Limiting block; 15. Limiting frame; 16. Feeding mechanism; 17. Support base. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A guardrail bending and forming device, please refer to... Figure 1 , Figure 3 and Figure 5The system includes a base 1, with a forming roller assembly 2 above the base 1. The forming roller assembly 2 includes an upper roller 201 and a lower roller 202. The outer surfaces of the upper roller 201 and the lower roller 202 are arranged in a wave-like pattern. Two supports 3 are provided at both ends of the forming roller assembly 2. The two supports 3 at both ends of the forming roller assembly 2 are a moving support 301 and a fixed support 302, respectively. Support shafts 4 are provided at both ends of the upper roller 201 and the lower roller 202. A drive shaft 5 is provided at one end of the support shaft 4. The drive shaft 5 is inserted into the inner wall of the middle part of the drive sleeve 6. Two adjusting components 7 are connected to the two corresponding drive sleeves 6 at both ends of the upper roller 201. The two adjusting components 7 are slidably arranged on the upper part of the inner wall of the middle part of the two supports 3. A pushing component 8 is connected between the two adjusting components 7. The pushing component 8 is arranged in a liquid... One end of the output end of the pressure rod 9, and two transmission sleeves 6 corresponding to the two ends of the lower mold roller 202 are set in the middle inner wall of the two second rotating rings 10. The two second rotating rings 10 are rotatably set in the middle inner wall of the two second connecting plates 11. The two second connecting plates 11 are respectively set in the middle inner wall of the moving bracket 301 and the fixed bracket 302. One end of the fixed end of the hydraulic rod 9 is set on the top of the fixed bracket 302 through the fixing frame. The bottom of the fixed bracket 302 is set on the top of the base 1 through the fixing block. The bottom of the moving bracket 301 is provided with a pushing block 12. The middle inner wall of the pushing block 12 is threadedly connected with a threaded rod 13. The two ends of the threaded rod 13 are rotatably set on the top of the base 1 through the support plate. A feeding mechanism 16 is provided on one side of the forming mold roller group 2. The feeding mechanism 16 is set on the top of the base 1.

[0026] Please see Figure 1 , Figure 4 and Figure 5 The adjusting component 7 includes a first rotating ring 701. The inner wall of the first rotating ring 701 is disposed on the outer surface of the transmission sleeve 6 corresponding to the upper mold roller 201. The first rotating ring 701 is rotatably disposed within the inner wall of the first connecting plate 702. One end of the two first connecting plates 702 at both ends of the upper mold roller 201 is disposed at both ends of the bottom of the pushing component 8. Through the cooperation of the first rotating ring 701 and the first connecting plate 702, the adjusting component 7 can realize the stable rotation of the transmission sleeve 6, ensuring the normal operation of the upper mold roller 201 during work. It can also connect the first connecting plate 702 with the pushing component 8, so that the upper mold roller 201 can slide synchronously with the adjusting component 7, which is convenient for adjusting the fit gap between the upper mold roller 201 and the lower mold roller 202 according to the processing requirements.

[0027] Please see Figure 1 , Figure 2 and Figure 5The pushing component 8 includes a plug-in frame 801 and a plug plate 802. The plug plate 802 is inserted into the inner wall of the middle part of the plug-in frame 801. One bottom end of the plug plate 802 is fixedly connected to the top end of the first connecting plate 702 located inside the moving bracket 301. One bottom end of the plug-in frame 801 is fixedly connected to the top end of the first connecting plate 702 located inside the fixed bracket 302. The top outer surface of the plug-in frame 801 is fixedly connected to one end of the output end of the hydraulic rod 9. The plug-in frame 801 and the plug plate of the pushing component 8 are connected in this way. The 802 insertion fit ensures stable transmission of the hydraulic rod 9's pushing force during normal operation, enabling the two adjusting components 7 to synchronously drive the upper mold roller 201 to move up and down, guaranteeing the precise fit between the upper mold roller 201 and the lower mold roller 202. When it is necessary to replace the forming mold roller group 2, as the moving bracket 301 moves away from the fixed bracket 302, the insertion plate 802 can be smoothly pulled out from the insertion frame 801 without obstructing the movement of the moving bracket 301, ensuring the normal separation of the corresponding transmission sleeve 6 and the transmission shaft 5.

[0028] Please see Figure 1 , Figure 2 and Figure 5 Two limiting plates 703 are provided on both sides of the two first connecting plates 702 at both ends of the upper mold roller 201. The inner wall of the middle part of the limiting plate 703 is slidably disposed on the outer surface of the middle part of the limiting rod 704. The two ends of the limiting rod 704 at both ends of the upper mold roller 201 are respectively disposed on the inner wall of the middle part of the moving bracket 301 and the fixed bracket 302 through two fixing plates. The cooperation of the limiting plate 703 and the limiting rod 704 can accurately limit the sliding direction of the first connecting plate 702, avoid the first connecting plate 702 from shifting or shaking during the up and down movement, ensure the stability and accuracy of the cooperation between the upper mold roller 201 and the lower mold roller 202, and improve the accuracy of the guardrail bending and forming. At the same time, the cooperation of the limiting plate 703 and the limiting rod 704 can make the adjusting component 7 stably installed inside the bracket 3, so that the moving bracket 301 can stably drive the corresponding adjusting component 7 to move when it moves.

[0029] Please see Figure 1 , Figure 4 and Figure 5 The outer surface of the middle part of the drive shaft 5 is polygonal, and the shape of the outer surface of the middle part of the drive shaft 5 matches the shape of the inner wall of the middle part of the drive sleeve 6. The polygonal drive shaft 5 and the matching drive sleeve 6 can ensure stable power transmission between the two, avoid slippage during the rotation of the mold roller, ensure the synchronous operation of the upper mold roller 201 and the lower mold roller 202, and improve the consistency of the bending and forming of the guardrail. At the same time, the polygonal structure facilitates the quick separation and insertion of the drive shaft 5 and the drive sleeve 6. When changing the mold roller, the two can be separated and connected by simply pulling them out, which further simplifies the replacement steps and shortens the replacement time.

[0030] Example 2: A guardrail bending and forming device, please refer to... Figure 1 , Figure 2 and Figure 3 Two limiting blocks 14 are provided at both ends of the bottom of the push block 12. The outer surface of the middle part of the two limiting blocks 14 is slidably set in the inner wall of the middle part of the two limiting frames 15. The limiting frames 15 are set on the top of the base 1. The cooperation of the limiting blocks 14 and the limiting frames 15 can strictly limit the movement trajectory of the push block 12, so as to prevent the push block 12 from causing the moving bracket 301 to tilt at an angle when the threaded rod 13 rotates. This ensures that the moving bracket 301 can stably approach or move away from the fixed bracket 302 along a straight line, and ensures that the transmission sleeve 6 on the moving bracket 301 can accurately separate or connect with the corresponding transmission shaft 5, thereby improving the convenience and accuracy of operation when changing the mold roller.

[0031] Please see Figure 1 , Figure 2 and Figure 3 The base 1 is equipped with multiple molding roller groups 2. The multiple molding roller groups 2 are set with different molding specifications. The setting of multiple molding roller groups 2 allows the equipment to quickly switch the corresponding molding roller group 2 according to different guardrail bending and forming specifications, without the need to temporarily replace the molding roller group 2. This further shortens the time to adapt to different production needs, improves the equipment's ability to respond quickly to diversified production tasks, and improves the overall production efficiency.

[0032] Please see Figure 1 , Figure 3 and Figure 5 Two support seats 17 are installed on the side of the bracket 3 near the forming roller assembly 2 via a fixing frame. The top of the support seat 17 is open and the support seat 17 is located below the support shaft 4. The inner wall of the support seat 17 is slidably connected to the outer surface of the middle part of the support shaft 4. The support seat 17 can provide temporary support for the support shaft 4 during the installation or replacement of the forming roller assembly 2, so as to avoid the difficulty of connecting the transmission shaft 5 and the transmission sleeve 6 due to the drooping of the support shaft 4 under gravity. When replacing the forming roller assembly 2, it is not necessary to lift the upper roller 201 and the lower roller 202 for a long time. At the same time, when the roller is working, the sliding cooperation between the support seat 17 and the support shaft 4 will not affect the normal rotation of the roller. This improves the convenience of roller replacement and installation and ensures the stability of the equipment during operation.

[0033] The implementation principle of this application embodiment is as follows: When the guardrail bending and forming equipment is working, the guardrail to be processed is conveyed to the upper mold roller 201 and lower mold roller 202 of the forming mold roller group 2 through the feeding mechanism 16. The hydraulic rod 9 is activated, and its output end drives the two adjusting components 7 to slide downward inside the bracket 3 through the pushing component 8, so that the upper mold roller 201 moves downward. The upper mold roller 201 and the lower mold roller 202 cooperate with each other to roll form the metal plate during the rotation. When it is necessary to change the forming mold roller group 2 of different specifications, the threaded rod 13 is rotated. The threaded rod 13 drives the pushing block 12 to move, so that the moving bracket 301 moves away from the fixed bracket 302 along the trajectory defined by the limiting block 14 and the limiting frame 15. The transmission sleeve 6 on the moving bracket 301 moves with it and separates from the corresponding transmission shaft 5. When the moving bracket 301 moves, it will drive the insert plate 80 on the side of the moving bracket 301. 2. Pull out the upper mold roller 201 and the lower mold roller 202 from the insertion frame 801. Then, pull the upper mold roller 201 and the lower mold roller 202 so that the drive shaft 5 at the other end is pulled out from the drive sleeve 6 on the side of the fixed bracket 302. At the same time, the support seat 17 will support the upper mold roller 201 and the lower mold roller 202 through the support shaft 4. Remove the upper mold roller 201 and the lower mold roller 202 that need to be replaced. Place the support shaft 4 of the upper mold roller 201 and the lower mold roller 202 that meet the processing specifications on the support seat 17. Insert the drive shaft 5 near the fixed bracket 302 into the drive sleeve 6 on the side of the fixed bracket 302. Rotate the threaded rod 13 to drive the push block 12 to move towards the fixed bracket 302, so that the moving bracket 301 moves towards the fixed bracket 302 until the drive sleeve 6 on the side of the moving bracket 301 is engaged with the corresponding drive shaft 5. The insertion plate 802 is reinserted into the insertion frame 801 to complete the replacement of the forming mold roller group 2.

[0034] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A guardrail bending and forming equipment, comprising a base (1), characterized in that: A forming roller assembly (2) is provided above the base (1). The forming roller assembly (2) includes an upper roller (201) and a lower roller (202). The outer surfaces of the upper roller (201) and the lower roller (202) are arranged in a wave-like pattern. Two supports (3) are provided at both ends of the forming roller assembly (2). The two supports (3) at both ends of the forming roller assembly (2) are a moving support (301) and a fixed support (302), respectively. The upper roller (201) and the lower roller... (202) has a support shaft (4) at both ends, and a transmission shaft (5) is provided at one end of the support shaft (4). The transmission shaft (5) is inserted into the middle inner wall of the transmission sleeve (6). The two transmission sleeves (6) corresponding to the two ends of the upper mold roller (201) are connected to two adjustment components (7). The two adjustment components (7) are slidably set on the upper part of the middle inner wall of the two supports (3). A push component (8) is connected between the two adjustment components (7). The push component (8) is set at one end of the output end of the hydraulic rod (9). The two transmission sleeves (6) corresponding to the two ends of the lower mold roller (202) are set in the middle inner wall of the two second rotating rings (10). The two second rotating rings (10) are rotatably set in the middle inner wall of the two second connecting plates (11). The two second connecting plates (11) are respectively set in the middle inner wall of the moving support (301) and the fixed support (302). One end of the fixed end of the hydraulic rod (9) is set on the fixed support (302) through a fixing frame. The bottom of the fixed bracket (302) is set on the top of the base (1) by a fixed block. The bottom of the moving bracket (301) is provided with a push block (12). The inner wall of the middle part of the push block (12) is threaded with a threaded rod (13). The two ends of the threaded rod (13) are rotatably set on the top of the base (1) by a support plate. A feeding mechanism (16) is provided on one side of the forming roller group (2). The feeding mechanism (16) is set on the top of the base (1).

2. The guardrail bending and forming equipment according to claim 1, characterized in that: The adjusting component (7) includes a first rotating ring (701), the inner wall of the first rotating ring (701) is disposed on the outer surface of the transmission sleeve (6) corresponding to the upper mold roller (201), the first rotating ring (701) is rotatably disposed in the inner wall of the first connecting plate (702), and one end of the two first connecting plates (702) at both ends of the upper mold roller (201) is disposed at both ends of the bottom of the pushing component (8).

3. The guardrail bending and forming equipment according to claim 1, characterized in that: The pushing component (8) includes a plug-in frame (801) and a plug plate (802). The plug plate (802) is inserted into the inner wall of the middle part of the plug-in frame (801). One bottom end of the plug plate (802) is fixedly connected to the top end of the first connecting plate (702) located inside the moving bracket (301). One bottom end of the plug-in frame (801) is fixedly connected to the top end of the first connecting plate (702) located inside the fixed bracket (302). The top outer surface of the plug-in frame (801) is fixedly connected to one end of the output end of the hydraulic rod (9).

4. The guardrail bending and forming equipment according to claim 2, characterized in that: Two limiting plates (703) are provided on both sides of the two first connecting plates (702) at both ends of the upper mold roller (201). The inner wall of the middle part of the limiting plate (703) is slidably disposed on the outer surface of the middle part of the limiting rod (704). The two ends of the limiting rod (704) corresponding to the two ends of the upper mold roller (201) are respectively disposed on the inner wall of the middle part of the moving bracket (301) and the fixed bracket (302) through two fixing plates.

5. The guardrail bending and forming equipment according to claim 1, characterized in that: Two limiting blocks (14) are provided at both ends of the bottom of the push block (12). The outer surface of the middle part of the two limiting blocks (14) is slidably disposed in the middle inner wall of the two limiting frames (15). The limiting frames (15) are disposed on the top of the base (1).

6. The guardrail bending and forming equipment according to claim 1, characterized in that: The base (1) is provided with multiple sets of molding rollers (2) above it, and the multiple sets of molding rollers (2) are set with different molding specifications.

7. The guardrail bending and forming equipment according to claim 1, characterized in that: The bracket (3) has two support seats (17) on the side near the forming roller group (2) by a fixing frame. The top of the support seat (17) is open. The support seat (17) is located below the support shaft (4). The inner wall of the support seat (17) is slidably connected to the middle outer surface of the support shaft (4).

8. The guardrail bending and forming equipment according to claim 5, characterized in that: The outer surface of the middle part of the transmission shaft (5) is polygonal, and the shape of the outer surface of the middle part of the transmission shaft (5) is adapted to the shape of the inner wall of the middle part of the transmission sleeve (6).

Images