Cutting device for high-temperature-resistant hot-dip galvanized bridge section bar

Abstract

The utility model relates to the technical field of cutting devices, in particular to a high-temperature-resistant hot-dip galvanizing bridge section cutting device which reduces vibration at a fracture of a bridge section and improves cutting quality by fixing and supporting the two sides of the fracture of the bridge section, and is good in practicability. Comprising a base, a stand column, a lifting cylinder, a lifting seat and a cutting machine, a conveying roller set of the bridge section bar is arranged on the machine base, the upper portion of the first sliding rod is in sliding connection with the lifting base, the first pressing plate is installed at the lower end of the first sliding rod, the first pressing plate is located above the machine base, and the first pressing plate supports and fixes the inner wall of the rear side of a fracture of the bridge section bar; the upper end of the first spring is connected with the lifting base, the lower end of the first spring is connected with the first pressing plate, the supporting mechanism is installed on the outer side of the machine base and comprises an inner supporting assembly and an outer supporting assembly, the inner supporting assembly supports and fixes the inner wall of the front side of the fracture of the bridge frame profile, and the outer supporting assembly supports and fixes the outer wall of the fracture of the bridge frame profile.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting devices, in particular to a high temperature resistant hot dip galvanized bridge profile cutting device. Background Art

[0002] High-temperature hot-dip galvanized cable trays are usually made of aluminum or steel trough profiles, which are cut and then folded, punched, and other processes. The Chinese utility model patent with the prior art publication number CN216990185U proposes a cable tray cutting device, which is provided with a rotating structure, a first track, a support plate, a second track, and a support block; the profile cutting machine is connected to the rotating structure, and the profile cutting machine rotates along the rotating structure to change the angle. The cable tray is limited by the support block, and the first track and the second track are provided, which is conducive to adjusting the position of the cable tray, realizing multi-angle cutting of the cable tray, relatively accurate size control, and relatively good operation flexibility; thereby overcoming the technical problems of not being able to rotate freely at multiple angles, not being able to accurately cut edges at different angles, inaccurate size control, affecting the subsequent splicing process, and inconvenient operation, and achieving the technical effect of being able to rotate freely at multiple angles, being able to accurately cut edges at different angles, relatively accurate size control, and relatively convenient operation, and having practicality.

[0003] However, the above-mentioned cutting device does not provide effective and stable support for the cut end when cutting the bridge frame profile. When using a cutting blade for cutting, the contact between the cut end of the bridge frame profile and the cutting blade will cause the cut end to vibrate, which in turn leads to defects such as burrs, rough edges and uneven edges at the cut end. Therefore, improvement is needed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a high temperature resistant hot dip galvanized bridge profile cutting device with good practicality, which reduces vibration at the bridge profile fracture and improves cutting quality by fixing both sides of the fracture of the supporting bridge profile.

[0005] The utility model discloses a high temperature resistant hot dip galvanized bridge profile cutting device, comprising a machine base, a column, a lifting cylinder, a lifting seat and a cutting machine, the column is mounted on the machine base, the fixed end of the lifting cylinder is mounted on the column, the lifting seat is mounted on the lower end of the piston rod of the lifting cylinder, the cutting machine is mounted on the lifting seat, and the output shaft of the cutting machine is concentrically mounted with a cutting blade; it also comprises a slide bar, a pressure plate, a spring and an external supporting mechanism, a conveying roller group of the bridge profile is arranged on the machine base, the upper part of the slide bar is slidably connected with the lifting seat, the pressure plate is mounted on the lower end of the slide bar, the pressure plate is located above the machine base, the pressure plate supports the inner wall of the rear side of the fracture of the fixed bridge profile, the upper end of the spring is connected with the lifting seat, the lower end of the spring is connected with the pressure plate, the supporting mechanism is mounted on the outer side of the machine base, the supporting mechanism comprises an inner supporting component and an outer supporting component, the inner supporting component supports the inner wall of the front side of the fracture of the fixed bridge profile, and the outer supporting component supports the outer wall of the fracture of the fixed bridge profile; when working, the bridge profile is moved by the machine base The conveying roller group on the upper is transported to the cutting machine, and the end of the bridge frame profile is extended out of the machine base for a distance, and the piston rod of the lifting cylinder is extended to make the lifting seat descend, and the lifting seat presses the pressure plate one against the inner wall of the bridge frame profile through the spring one, so that the pressure plate one fixes and supports the inner wall of the bridge frame profile close to the rear side of the cutting blade of the cutting machine, and at the same time, the supporting mechanism is operated to make the supporting inner component and the supporting outer component cooperate to fix and support the inner wall and outer wall of the end of the bridge frame profile extending out of the machine base, at this time, the pressure plate one and the supporting mechanism cooperate to fix and support the fracture of the bridge frame profile, and the cutting machine is started, and the piston rod of the lifting cylinder continues to extend, pushing the lifting seat and the cutting machine down, so that the cutting blade of the cutting machine cuts the bridge frame profile, and at the same time, the spring one is compressed, and the lifting seat slides and descends along the slide rod one. Since both sides of the fracture of the bridge frame profile are fixedly supported during cutting, the vibration of the fracture of the bridge frame profile is reduced, and the defects such as burrs, burrs and uneven edges at the fracture are reduced, the cutting quality is improved, and the practicability is good.

[0006] Preferably, it also includes multiple wheel frames, multiple rollers, multiple threaded hole seats and multiple double-headed screws, the multiple wheel frames are symmetrically arranged on the left and right sides of the pressure plate, the middle parts of the multiple wheel frames are rotatably connected to the pressure plate, the outer ends of the multiple wheel frames are rotatably installed with rollers, the multiple rollers extend out to the left and right outsides of the pressure plate, the inner ends of the multiple wheel frames are rotatably installed with threaded hole seats, the two ends of the multiple double-headed screws are respectively provided with positive threads and negative threads, and the two ends of the multiple double-headed screws are respectively rotatably screwed with the multiple threaded hole seats; the pressure plate fixes and presses the bottom wall inside the bridge frame profile, and rotates the multiple double-headed screws so that the multiple double-headed screws respectively pull the multiple threaded hole seats relatively close or far away, thereby causing the relatively arranged multiple wheel frames to rotate, so that the multiple wheel frames drive the multiple rollers to move synchronously toward the inside or outside of the pressure plate, so that the multiple rollers roll and support the inner wall of the bridge frame profile, and can support bridge frame profiles of different widths, with good versatility.

[0007] Preferably, the conveying roller group includes multiple rollers two, a mounting plate and multiple rollers three, multiple rollers two are rotatably installed on the machine base, multiple rollers two are arranged in a row, the mounting plate is adjustable on the machine base, multiple rollers three are rotatably installed on the mounting plate, and multiple rollers three and multiple rollers two are relatively arranged; multiple rollers two and multiple rollers three respectively perform rolling support and fixation on the outer wall of the bridge profile, thereby improving the stability of the bridge profile, and the bridge profile can be conveyed when multiple rollers two and multiple rollers three rotate, which has good practicality.

[0008] Preferably, it also includes multiple sliders, multiple slideways are arranged on the machine base, the multiple sliders are slidably installed in the slideways of the multiple machine bases respectively, the mounting plate is installed on the sliders, and the multiple sliders are all provided with locking bolts; the multiple sliders move along the slideways of the machine base, thereby adjusting the positions of the multiple sliders in the slide grooves and fastening them in place through locking bolts, thereby adjusting the distance between the multiple rollers three and the multiple rollers two, and can provide rolling support for bridge profiles of different widths, with good versatility.

[0009] Preferably, the supporting outer component includes a support plate, a push cylinder, two racks 1, two external pressure plates and a gear 1. The lower end of the support plate is rotatably connected to the side wall of the machine base, the lower end of the push cylinder is rotatably connected to the side wall of the machine base, the upper end of the push cylinder is rotatably connected to the middle part of the support plate, the inner ends of the two racks 1 are slidably inserted on the left and right sides of the upper part of the support plate, respectively, the outer ends of the two racks 1 are provided with external pressure plates, the gear 1 is rotatably installed on the upper part of the support plate, the gear 1 is located between the two racks 1, and the gear 1 is meshed with the two racks 1; The movable gear 1 makes the gear 1 synchronously mesh and drive the two racks 1, so that the two racks 1 are synchronously extended or retracted into the upper part of the support plate, driving the two outer pressure plates to approach or move away from the outer wall of the bridge profile, thereby fixing and supporting the outer wall of the bridge profile of different widths, and the upper part of the support plate fixes and supports the lower end surface of the bridge profile. When the cutting of the bridge profile is completed, the push cylinder contracts to make the support plate flip to the outer side and lower side of the machine base, thereby automatically removing the cut bridge profile, which has good practicality and usability.

[0010] Preferably, the supporting inner component includes a pressure plate 2, two rack 2s, two inner pressure plates and a gear 2, the pressure plate 2 is located above the support plate, the inner ends of the two rack 2s are slidably inserted in the left and right sides of the pressure plate 2, respectively, the outer ends of the two rack 2s are provided with inner pressure plates, the gear 2 is rotatably installed on the pressure plate 2, the gear 2 is located between the two rack 2s, and the gear 2 is meshed with the two rack 2s; the gear 2 is rotated so that the gear 2 synchronously meshes and drives the two racks 2, so that the two racks 2 are synchronously extended or retracted into the upper part of the pressure plate 2, driving the two inner pressure plates to approach or move away from the inner wall of the bridge profile, thereby fixing and supporting the inner wall of the bridge profile of different widths, and the pressure plate 2 fixes and supports the inner bottom wall of the bridge profile, which has good practicality and passability.

[0011] Preferably, it also includes a slide rod 2 and a spring 2, the upper end of the slide rod 2 is slidably inserted into the lifting seat, the upper end of the spring 2 is connected to the lifting seat, and the lower end of the spring 2 is connected to the pressure plate 2; when the lifting seat descends, the pressure plate 2 is pressed and fixed to the inner bottom wall of the supporting bridge profile by the spring 2, and when the cutting blade of the cutting machine cuts the bridge profile, the slide rod 2 rises along the lifting seat and compresses the spring 2, and when the bridge profile is cut and the lifting seat is raised, the pressure plate 2 is raised to a higher height by the spring 2, and the slide rod 2 and the lifting seat cooperate to limit the lifting and lowering of the pressure plate 2, which has good practicality.

[0012] Compared with the prior art, the utility model has the following beneficial effects: since both sides of the fracture of the bridge profile are fixedly supported during cutting, the vibration of the fracture of the bridge profile is reduced, and defects such as burrs, rough edges and uneven edges at the fracture are reduced, the cutting quality is improved, and the practicality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the working state of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the utility model;

[0015] Figure 3 It is a structural diagram of the machine base and conveying roller group;

[0016] Figure 4 It is a structural schematic diagram of a sliding rod, a pressing plate, a wheel frame, a roller, a threaded hole seat and a double-headed screw;

[0017] Figure 5 It is a schematic diagram of the structure of the column, lifting cylinder, cutting machine, slide bar one, pressure plate one and supporting internal components;

[0018] Figure 6 It is a schematic diagram of the structure supporting the external components and other structures;

[0019] Figure 7 It is a schematic diagram of the structure supporting internal components and other structures.

[0020] Markings in the attached drawings: 1. machine base; 2. column; 3. lifting cylinder; 4. lifting seat; 5. cutting machine; 6. slide bar 1; 7. pressure plate 1; 8. spring 1; 9. wheel frame; 10. roller 1; 11. threaded hole seat; 12. double-headed screw; 13. roller 2; 14. mounting plate; 15. roller 3; 16. slider; 17. support plate; 18. push cylinder; 19. rack 1; 20. outer pressure plate; 21. gear 1; 22. pressure plate 2; 23. rack 2; 24. inner pressure plate; 25. gear 2; 26. slide bar 2; 27. spring 2. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] Example 1

[0023] like Figures 1 to 5 As shown, a high temperature resistant hot dip galvanized bridge profile cutting device includes a machine base 1, a column 2, a lifting cylinder 3, a lifting seat 4 and a cutting machine 5, the column 2 is mounted on the machine base 1, the fixed end of the lifting cylinder 3 is mounted on the column 2, the lifting seat 4 is mounted on the lower end of the piston rod of the lifting cylinder 3, the cutting machine 5 is mounted on the lifting seat 4, and the output shaft of the cutting machine 5 is concentrically mounted with a cutting blade; it also includes a slide bar 6, a pressure plate 7, a spring 8 and an external support mechanism, a conveying roller group for the bridge profile is arranged on the machine base 1, and the upper part of the slide bar 6 slides with the lifting seat 4 The pressing plate 7 is connected to the lower end of the slide bar 6, and the pressing plate 7 is located above the machine base 1. The pressing plate 7 supports the inner wall of the rear side of the fracture of the fixed bridge frame profile. The upper end of the spring 8 is connected to the lifting seat 4, and the lower end of the spring 8 is connected to the pressing plate 7. The supporting mechanism is installed on the outside of the machine base 1. The supporting mechanism includes a supporting inner component and a supporting outer component. The supporting inner component supports the inner wall of the front side of the fracture of the fixed bridge frame profile, and the supporting outer component supports the outer wall of the fracture of the fixed bridge frame profile; it also includes multiple wheel frames 9, multiple rollers 10, and multiple The threaded hole seat 11 and multiple double-headed screws 12, multiple wheel frames 9 are symmetrically arranged on the left and right sides of the pressure plate 7, the middle parts of the multiple wheel frames 9 are rotatably connected with the pressure plate 7, the outer ends of the multiple wheel frames 9 are rotatably installed with rollers 10, and the multiple rollers 10 extend out of the left and right outer sides of the pressure plate 7, and the inner ends of the multiple wheel frames 9 are rotatably installed with the threaded hole seat 11, and the two ends of the multiple double-headed screws 12 are respectively provided with positive threads and reverse threads, and the two ends of the multiple double-headed screws 12 are respectively rotatably screwed with the multiple threaded hole seats 11; the conveying roller group includes multiple rollers 2 13, a mounting plate 14 and multiple roller threes 15, multiple roller twos 13 are rotatably mounted on the machine base 1, multiple roller twos 13 are arranged in a row, the mounting plate 14 is adjustable and mounted on the machine base 1, multiple roller threes 15 are rotatably mounted on the mounting plate 14, and multiple roller threes 15 and multiple roller twos 13 are arranged relatively; it also includes multiple sliders 16, multiple slideways are arranged on the machine base 1, multiple sliders 16 are respectively slidably mounted in the slideways of multiple machine bases 1, the mounting plate 14 is mounted on the sliders 16, and multiple sliders 16 are all provided with locking bolts.

[0024] Multiple sliders 16 move along the slideway of the machine base 1, thereby adjusting the positions of the multiple sliders 16 in the slideway and fastening them in place through locking bolts, thereby adjusting the distance between the multiple rollers three 15 and the multiple rollers two 13, and being able to provide rolling support for bridge profiles of different widths. By rotating the multiple double-headed screws 12, the multiple double-headed screws 12 respectively pull the multiple threaded hole seats 11 relatively close or far away, thereby causing the relatively arranged multiple wheel frames 9 to rotate, so that the multiple wheel frames 9 drive the multiple rollers one 10 to move synchronously toward the inside or outside of the pressure plate one 7, so that the multiple rollers one 10 provide rolling support for the inner wall of the bridge profile and are able to support bridge profiles of different widths. During operation, the bridge profile is fixed by the machine base 1, and the multiple rollers two 13 and the multiple rollers three 15 respectively provide rolling support for the outer wall of the bridge profile, thereby improving the stability of the bridge profile, and the multiple rollers two 13 and the multiple rollers three 15 rotate to transport the bridge profile to the cutting machine 5 The end of the bridge profile is extended out of the machine base 1 for a distance, the piston rod of the lifting cylinder 3 is extended to make the lifting seat 4 descend, and the lifting seat 4 presses the pressure plate 7 against the inner wall of the bridge profile through a spring 8, and multiple rollers 10 roll and support the inner wall of the bridge profile, and at the same time, the support mechanism is operated to make the inner support component and the outer support component cooperate to fix and support the inner wall and outer wall of the end of the bridge profile extending out of the machine base 1. At this time, the pressure plate 7 and the support mechanism cooperate to fix and support the fracture of the bridge profile, and the cutting machine 5 is started, and the piston rod of the lifting cylinder 3 continues to extend, pushing the lifting seat 4 and the cutting machine 5 to descend, so that the cutting blade of the cutting machine 5 cuts the bridge profile. At the same time, the spring 8 is compressed, and the lifting seat 4 slides and descends along the slide rod 6. Since both sides of the fracture of the bridge profile are fixedly supported during cutting, the vibration of the fracture of the bridge profile is reduced, and the defects such as burrs, burrs and uneven edges at the fracture are reduced, thereby improving the cutting quality.

[0025] Example 2

[0026] like Figures 5 to 7As shown, on the basis of Example 1, the supporting outer component includes a support plate 17, a push cylinder 18, two racks 19, two outer pressure plates 20 and a gear 21. The lower end of the support plate 17 is rotatably connected to the side wall of the machine base 1, the lower end of the push cylinder 18 is rotatably connected to the side wall of the machine base 1, the upper end of the push cylinder 18 is rotatably connected to the middle part of the support plate 17, the inner ends of the two racks 19 are slidably inserted on the left and right sides of the upper part of the support plate 17, the outer ends of the two racks 19 are both provided with outer pressure plates 20, and the gear 21 is rotatably installed on the upper part of the support plate 17. The gear 21 is located between the two racks 19, and the gear 21 is meshed with the two racks 19; The inner support component includes a pressure plate 22, two racks 23, two inner pressure plates 24 and a gear 25. The pressure plate 22 is located above the support plate 17. The inner ends of the two racks 23 are respectively slidably inserted in the left and right sides of the pressure plate 22. The outer ends of the two racks 23 are provided with inner pressure plates 24. The gear 25 is rotatably installed on the pressure plate 22. The gear 25 is located between the two racks 23, and the gear 25 is meshed with the two racks 23. It also includes a slide bar 26 and a spring 27. The upper end of the slide bar 26 is slidably inserted in the lifting seat 4, the upper end of the spring 27 is connected to the lifting seat 4, and the lower end of the spring 27 is connected to the pressure plate 22.

[0027] Rotate gear 1 21, so that gear 1 21 synchronously meshes and drives two racks 19, so that the two racks 19 synchronously extend or retract into the upper part of the support plate 17, drive the two outer pressure plates 20 close to or away from the outer wall of the bridge profile, thereby fixedly supporting the outer wall of the bridge profile of different widths, rotate gear 2 25, so that gear 2 25 synchronously meshes and drives two racks 23, so that the two racks 23 synchronously extend or retract into the upper part of the pressure plate 2 22, drive the two inner pressure plates 24 close to or away from the inner wall of the bridge profile, thereby fixedly supporting the inner wall of the bridge profile of different widths, and the upper part of the support plate 17 The lower end surface of the bridge profile is fixedly supported, and when the lifting seat 4 descends, the pressure plate 22 is pressed and fixed to the inner bottom wall of the bridge profile through the spring 27. When the cutting blade of the cutting machine 5 cuts the bridge profile, the slide bar 26 rises along the lifting seat 4 and compresses the spring 27. When the bridge profile is cut and the lifting seat 4 is raised, the pressure plate 22 is raised to a higher height through the spring 27. The slide bar 26 and the lifting seat 4 cooperate to limit the lifting and lowering of the pressure plate 22. When the cutting of the bridge profile is completed, the push cylinder 18 contracts to flip the support plate 17 to the outer side and lower side of the machine base 1, thereby automatically removing the cut bridge profile.

[0028] like Figures 1 to 7As shown, the utility model is a high-temperature resistant hot-dip galvanized bridge profile cutting device. When it is working, the bridge profile is first placed between multiple rollers 13 and multiple rollers 15, and multiple rollers 13 and multiple rollers 15 rotate to transport the bridge profile to the cutting machine 5, and make the end of the bridge profile extend a distance from the machine base 1, and the push cylinder 18 extends to flip the support plate 17 upward, so that the upper part of the support plate 17 fixes and supports the lower end surface of the bridge profile, and the two outer pressure plates 20 fix and support the outer wall of the bridge profile, and then the piston rod of the lifting cylinder 3 is extended to make the lifting seat 4 descend, and the lifting seat 4 presses the pressure plate 7 against the inner wall of the bridge profile through the spring 8, so that the pressure plate 7 fixes and supports the inner wall of the bridge profile close to the rear side of the cutting blade of the cutting machine 5, and multiple rollers 10 fix and support the inner wall of the bridge profile. The wall is rolled and supported, and then when the lifting seat 4 descends, the spring 27 is used to press the pressure plate 22 tightly and fix the inner bottom wall of the bridge frame profile, so that the two inner pressure plates 24 fix the inner wall of the bridge frame profile, and the pressure plate 22 fixes the inner bottom wall of the bridge frame profile. The cutting machine 5 is started, and the piston rod of the lifting cylinder 3 continues to extend, pushing the lifting seat 4 and the cutting machine 5 to descend, so that the cutting blade of the cutting machine 5 cuts the bridge frame profile. At the same time, the spring 18 is compressed, and the lifting seat 4 slides and descends along the slide bar 16. Finally, after the cutting is completed, the cutting machine 5 stops, and the lifting cylinder 3 contracts to lift the lifting seat 4 and the cutting machine 5, so that the pressure plates 17 and the pressure plate 22 are separated from the bridge frame profile, and the push cylinder 18 contracts to flip the support plate 17 to the outer side and bottom of the machine base 1, so that the cut bridge frame profile can be automatically removed.

[0029] The main functions achieved by this utility model are:

[0030] 1. By fixing the two sides of the fracture of the supporting bridge profile, the vibration at the fracture of the bridge profile is reduced and the cutting quality is improved;

[0031] 2. It can fix and support bridge profiles of different widths, with good versatility;

[0032] 3. It can roll and convey bridge profiles for automatic loading, with a high degree of automation.

[0033] The utility model is a high-temperature resistant hot-dip galvanized bridge profile cutting device, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; the utility model is a high-temperature resistant hot-dip galvanized bridge profile cutting device. The base 1, column 2, lifting cylinder 3, cutting machine 5, slide bar 1 6, spring 1 8, roller 1 10, threaded hole seat 11, double-headed screw 12, roller 2 13, roller 3 15, slider 16, push cylinder 18, rack 1 19, gear 1 21, rack 2 23, gear 2 25, and spring 27 are purchased on the market, and technical personnel in the industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to pay creative labor.

[0034] All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high temperature resistant hot dip galvanized bridge profile cutting device, comprising a machine base (1), a column (2), a lifting cylinder (3), a lifting seat (4) and a cutting machine (5), wherein the column (2) is mounted on the machine base (1), the fixed end of the lifting cylinder (3) is mounted on the column (2), the lifting seat (4) is mounted on the lower end of the piston rod of the lifting cylinder (3), the cutting machine (5) is mounted on the lifting seat (4), and the output shaft of the cutting machine (5) is concentrically mounted with a cutting blade; characterized in that: It also includes a slide bar (6), a pressure plate (7), a spring (8) and an external support mechanism. A conveying roller group for the bridge profile is arranged on the machine base (1). The upper part of the slide bar (6) is slidably connected to the lifting seat (4). The pressure plate (7) is installed at the lower end of the slide bar (6). The pressure plate (7) is located above the machine base (1). The pressure plate (7) supports the inner wall of the rear side of the fracture of the fixed bridge profile. The upper end of the spring (8) is connected to the lifting seat (4). The lower end of the spring (8) is connected to the pressure plate (7). The support mechanism is installed on the outer side of the machine base (1). The support mechanism includes an inner support component and an outer support component. The inner support component supports the inner wall of the front side of the fracture of the fixed bridge profile, and the outer support component supports the outer wall of the fracture of the fixed bridge profile.

2. A high temperature resistant hot dip galvanized bridge profile cutting device as claimed in claim 1, characterized in that: It also includes a plurality of wheel frames (9), a plurality of rollers (10), a plurality of threaded hole seats (11) and a plurality of double-headed screws (12). The plurality of wheel frames (9) are symmetrically arranged on the left and right sides of the pressure plate (7). The middle parts of the plurality of wheel frames (9) are rotatably connected to the pressure plate (7). The outer ends of the plurality of wheel frames (9) are rotatably mounted with rollers (10). The plurality of rollers (10) extend out of the left and right outer sides of the pressure plate (7). The inner ends of the plurality of wheel frames (9) are rotatably mounted with threaded hole seats (11). Both ends of the plurality of double-headed screws (12) are respectively provided with positive threads and negative threads. Both ends of the plurality of double-headed screws (12) are respectively rotatably screwed with the plurality of threaded hole seats (11).

3. A high temperature resistant hot dip galvanized bridge profile cutting device as claimed in claim 1, characterized in that: The conveying roller group comprises a plurality of rollers 2 (13), a mounting plate (14) and a plurality of rollers 3 (15); the plurality of rollers 2 (13) are rotatably mounted on a machine base (1); the plurality of rollers 2 (13) are arranged in a row; the mounting plate (14) is positionally adjustable and mounted on the machine base (1); the plurality of rollers 3 (15) are rotatably mounted on the mounting plate (14); and the plurality of rollers 3 (15) and the plurality of rollers 2 (13) are arranged relative to each other.

4. A high temperature resistant hot dip galvanized bridge profile cutting device as claimed in claim 3, characterized in that: It also includes a plurality of sliders (16), a plurality of slideways are arranged on the machine base (1), the plurality of sliders (16) are respectively slidably mounted in the slideways of the plurality of machine bases (1), the mounting plate (14) is mounted on the sliders (16), and locking bolts are arranged on the plurality of sliders (16).

5. A high temperature resistant hot dip galvanized bridge profile cutting device as claimed in claim 1, characterized in that: The supporting outer component comprises a support plate (17), a push cylinder (18), two racks (19), two external pressure plates (20) and a gear (21); the lower end of the support plate (17) is rotatably connected to the side wall of the machine base (1); the lower end of the push cylinder (18) is rotatably connected to the side wall of the machine base (1); the upper end of the push cylinder (18) is rotatably connected to the middle part of the support plate (17); the inner ends of the two racks (19) are respectively slidably inserted on the left and right sides of the upper part of the support plate (17); the outer ends of the two racks (19) are both provided with external pressure plates (20); the gear (21) is rotatably installed on the upper part of the support plate (17); the gear (21) is located between the two racks (19); and the gear (21) is meshed with the two racks (19).

6. A high temperature resistant hot dip galvanized bridge profile cutting device as claimed in claim 1, characterized in that: The supporting inner component comprises a second pressing plate (22), two second racks (23), two inner pressing plates (24) and a second gear (25). The second pressing plate (22) is located above the supporting plate (17). The inner ends of the two second racks (23) are respectively slidably inserted in the left and right sides of the second pressing plate (22). The outer ends of the two second racks (23) are both provided with inner pressing plates (24). The second gear (25) is rotatably installed on the second pressing plate (22). The second gear (25) is located between the two second racks (23). The second gear (25) is meshed with the two second racks (23).

7. A high temperature resistant hot dip galvanized bridge profile cutting device as claimed in claim 6, characterized in that: It also includes a second slide bar (26) and a second spring (27), the upper end of the second slide bar (26) is slidably inserted into the lifting seat (4), the upper end of the second spring (27) is connected to the lifting seat (4), and the lower end of the second spring (27) is connected to the second pressing plate (22).

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