Construction steel bar cutting device

Abstract

The invention particularly relates to the technical field of building construction equipment and discloses a building steel bar cutting device which comprises a mounting mechanism, a collecting box is placed on the left side of the top of the mounting mechanism, a conveying mechanism is mounted on the front portion of the right side of the top of the mounting mechanism, and a steel bar body is slidably connected to the inner surface of the conveying mechanism. The lower side of the right end of the outer surface of the steel bar body is in contact connection with a supporting table, and an adjusting mechanism is installed at the front end of the conveying mechanism. When the building steel bar cutting-off device is used, under the action of the transmission belt, the first conveying roller and the second conveying roller rotate relatively, so that the effect of conveying a steel bar body is achieved, the vertical distance between the first conveying roller and the second conveying roller can be adjusted through the adjusting mechanism, and the cutting-off effect of the building steel bar is improved. When the vertical height of the first conveying roller is adjusted through the adjusting mechanism, the second trapezoidal sliding seat is in linkage with the sliding support, the adjusting roller is adjusted to be matched with the change of the first conveying roller, and therefore the transmission effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, and in particular to a steel bar cutting device for construction. Background Technology

[0002] In the field of construction engineering, steel bars are an indispensable structural material, widely used in concrete structures such as beams, slabs, and columns. According to design requirements, steel bars often need to be precisely cut before use to obtain steel bar segments of a specific length for binding or welding to form a steel bar skeleton. In construction engineering, there are many different sizes of steel bars, and each type of steel bar has a different purpose and location.

[0003] Some existing rebar cutting devices are only suitable for rebars of a single size. When switching rebar types, workers often need to frequently change equipment or adjust tools, which wastes time and may reduce construction efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a rebar cutting device that can effectively solve the problems mentioned above, such as that some existing rebar cutting devices are only applicable to rebars of a single size, and that when switching rebar types, workers often need to frequently change equipment or adjust tools, which wastes time and may reduce construction efficiency.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A rebar cutting device includes an installation mechanism. A collection box is placed on the top left side of the installation mechanism. A conveying mechanism is installed on the front part of the top right side of the installation mechanism. A rebar body is slidably connected to the inner surface of the conveying mechanism. A support platform is contact-type connected to the lower right end of the outer surface of the rebar body. An adjustment mechanism is installed at the front end of the conveying mechanism. A cutting device is installed on the top of the adjustment mechanism. A hydraulic pump box is fixedly connected to the top left side of the cutting device. A controller is fixedly connected to the top right side of the cutting device. The rebar body is rotatably connected to the inner side of the conveying mechanism. Protective mechanisms are fixedly connected to the bottom of the support platform and the left end of the outer surface of the cutting device. A rangefinder body is fixedly connected to the bottom of the controller.

[0006] Preferably, the mounting mechanism includes a base, a buffer groove is provided in the middle of the right side inside the base, an L-shaped slider is slidably connected to the inner surface of the buffer groove, a damper is fixedly connected to the right end of the L-shaped slider, a spring is slidably connected to the outer side of the damper, and a mounting plate is fixedly connected to the left side of the top of the L-shaped slider.

[0007] Preferably, the conveying mechanism includes a first conveying roller and a second conveying roller, which are arranged symmetrically at the top and bottom. Limiting brackets are fixedly connected symmetrically at the top and bottom to the opposite sides of the outer surfaces of the first and second conveying rollers. A pressure sensor is fixedly connected to the bottom of the upper limiting bracket.

[0008] Preferably, a drive shaft is fixedly connected to the middle of the front end of both conveying roller one and conveying roller two. An adjusting roller is provided at the right end of both drive shafts. A drive belt is rotatably connected to the middle of the outer surface of the adjusting roller and the two drive shafts. The front end of the lower drive shaft passes through the inner surface of the front limiting outer ring one. A drive box one is rotatably connected to the front end of the drive shaft. A bearing one is rotatably connected to the outer surface of the lower drive shaft near the rear side of the drive box one. A support base two is fixedly connected to the lower side of the outer surface of the bearing one. Limiting outer rings are fixedly connected to the front and rear sides of the outer surfaces of the adjusting roller and the two drive shafts.

[0009] Preferably, a fixing ring seat one is fixedly connected to the front side of the outer surface of the limiting outer ring located at the upper front part of the left end. A trapezoidal slide seat two is fixedly connected to the right side of the outer surface of the fixing ring seat one. A trapezoidal limiting block is slidably connected to the left side of the inner surface of the trapezoidal slide seat two. The left end of the trapezoidal limiting block is fixedly connected to the right end of the support base two. A fixing ring seat two is fixedly connected to the front side of the outer surface of the limiting outer ring located at the front part of the right end. A sliding bracket is fixedly connected to the lower side of the outer surface of the fixing ring seat two. A sliding groove seat is slidably connected to the bottom of the sliding bracket. A limiting plate is fixedly connected to the upper side of the right end of the outer surface of the trapezoidal slide seat two. A spring assembly two is fixedly connected to the lower side of the right end of the outer surface of the sliding bracket. The right end of the spring assembly two is fixedly connected to the inner surface of the sliding groove seat.

[0010] Preferably, a slide block is fixedly connected to the front end of the drive shaft located on the upper left side. A threaded rod is threadedly connected to the middle of the inner surface of the slide block. A rotating shaft is fixedly connected to both the upper and lower ends of the threaded rod. A bearing second is rotatably connected to the outer surface of both rotating shafts. An outer frame is fixedly connected to the outer surface of both bearing second.

[0011] Preferably, a drive box two is fixedly connected to the bottom of the outer frame, and the rotating shaft at the lower end passes through the middle of the inner surface of the lower bearing two and the lower side of the inner surface of the outer frame. The bottom of the rotating shaft at the lower end is rotatably connected to the output end of the drive box two.

[0012] Preferably, the top of the protective mechanism located at the right end is fixedly connected to the bottom of the support platform, the bottom of the protective mechanism located at the right end is fixedly connected to the middle of the top right side of the base, and the steel bar body is slidably connected to the middle of the top of the support platform.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This device, through its designed conveying mechanism, drives the transmission shaft of the drive box to rotate. Under the action of the transmission belt, the upper and lower conveying rollers rotate relative to each other, thereby achieving the effect of conveying the steel bar body. The vertical distance between the upper and lower conveying rollers can be adjusted by the adjustment mechanism, so that this device can be applied to steel bars of various sizes. When adjusting the vertical height of the upper and lower conveying rollers, the trapezoidal slide and the sliding bracket are linked. The adjustment roller is adjusted in conjunction with the adjustment of the upper and lower conveying rollers, so that the transmission belt can be completely in contact with the outside of the rollers to achieve the transmission effect. Through the adjustable clamping structure, it can flexibly adapt to steel bars of different diameters, thus maintaining high efficiency in various construction scenarios.

[0014] 2. This device uses a designed support platform to support and lift the steel bar from below, ensuring that the steel bar remains parallel to the installation mechanism during the cutting process. This helps to prevent uneven cross-sections caused by the steel bar being tilted during cutting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional view of the installation mechanism of the present invention; Figure 3 This is a schematic diagram of the conveying mechanism structure of the present invention; Figure 4 This is a schematic diagram of the explosion effect structure of the telescopic mechanism of the present invention; Figure 5 This is a schematic diagram of the adjustment mechanism structure of the present invention; Figure 6 This is a schematic diagram of the partial explosion effect structure of the conveying mechanism of the present invention; Figure 7 This is a partial cross-sectional view of the conveying mechanism of the present invention; Figure 8 This is a partial structural diagram of the conveying mechanism of the present invention; Figure 9 This is a schematic diagram of the explosion effect structure of the cutting-off device of the present invention.

[0016] In the diagram: 1. Mounting mechanism; 101. Base 1; 102. Buffer groove; 103. Damper; 104. Spring 1; 105. L-shaped slider; 106. Mounting plate; 2. Conveying mechanism; 201. Conveying roller 1; 202. Conveying roller 2; 203. Limiting bracket; 204. Pressure sensor; 205. Drive shaft; 206. Limiting outer ring; 207. Adjusting roller; 208. Limiting plate; 209. Drive belt; 210. Slide 1; 211. Bearing 1; 212. Supporting base 2; 13. Drive box 1; 214. Fixed ring seat 1; 215. Trapezoidal slide seat 2; 216. Slide seat; 217. Trapezoidal limit block; 218. Fixed ring seat 2; 219. Sliding bracket; 220. Spring assembly 2; 3. Adjustment mechanism; 301. Threaded rod; 302. Bearing 2; 303. Outer frame; 304. Drive box 2; 305. Rotating shaft; 4. Support platform; 5. Cutting device; 6. Rebar body; 7. Protective mechanism; 8. Hydraulic pump box; 9. Collection box; 10. Controller; 11. Rangefinder body. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] Example 1, as Figure 1 As shown, a rebar cutting device for construction includes an installation mechanism 1. A collection box 9 is placed on the left side of the top of the installation mechanism 1. A conveying mechanism 2 is installed on the front part of the right side of the top of the installation mechanism 1. A rebar body 6 is slidably connected to the inner surface of the conveying mechanism 2. A support platform 4 is contact-connected to the lower side of the right end of the outer surface of the rebar body 6. An adjustment mechanism 3 is installed at the front end of the conveying mechanism 2. A cutting device 5 is installed on the top of the adjustment mechanism 3. A hydraulic pump box 8 is fixedly connected to the left side of the top of the cutting device 5. A controller 10 is fixedly connected to the right side of the top of the cutting device 5. The rebar body 6 is rotatably connected to the inner side of the conveying mechanism 2. A protective mechanism 7 is fixedly connected to the bottom of the support platform 4 and the left end of the outer surface of the cutting device 5. A rangefinder body 11 is fixedly connected to the bottom of the controller 10.

[0019] In this embodiment, the steel bar body 6 is placed between the opposite sides of the first conveyor roller 201 and the second conveyor roller 202. The drive motor inside the drive box 213 drives the lower transmission shaft 205 to rotate. Under the action of the transmission belt 209, the upper transmission shaft 205 can be driven to rotate, so that the first conveyor roller 201 and the second conveyor roller 202 can rotate relative to each other. This allows the steel bar body 6 to be conveyed to the left for cutting. When the size and specifications of the steel bar body 6 are changed, the drive motor inside the drive box 2 304 drives the rotating shaft 305 to rotate, thereby causing the threaded rod 301 and the slide 1 210 to rotate in a threaded manner. With the threaded rod 301 rotating clockwise or counterclockwise, the slide 1 210 can be moved up or down, thereby adjusting the vertical distance between the conveying roller 1 201 and the conveying roller 2 202, so that the conveying roller 1 201 and the conveying roller 2 202 can be used for steel bar bodies 6 of various specifications and sizes; When the conveyor roller 201 moves upward, the trapezoidal slide 215 installed at the right end of the fixed ring seat 214 moves upward along the outer surface of the trapezoidal limit block 217. The inclined surface of the sliding bracket 219 near the trapezoidal slide 215 moves to the left along the top of the slide seat 216 under the action of the upward movement of the trapezoidal slide 215. When the sliding bracket 219 moves to the left, the spring assembly 220 inside the slide seat 216 is stretched as the sliding bracket 219 moves. When the trapezoidal slide block 215 moves down, the sliding bracket 219 moves to the right, and the spring assembly 220 retracts. While assisting in displacement, it can also limit the sliding bracket 219 from the bottom, thereby driving the adjusting roller 207 to move to the left. At this time, the transmission belt 209 changes with the position of the conveying roller 201 and the adjusting roller 207, and still fits in the middle of the outer surface of the two conveying rollers 201 and the adjusting roller 207, providing rotation effect for the conveying roller 201. This enables automatic adjustment of the conveying roller 201 and the conveying roller 202, eliminating the trouble of manually testing or adjusting multiple times according to the diameter of the steel bar body 6 to achieve the ideal clamping and conveying effect. The adjustable conveying mechanism 2 can be automatically adjusted according to the size and specifications of the steel bar body 6, which helps to improve the practicality of the device and avoids the trouble of switching the cutting equipment back and forth. After adjusting the conveying mechanism 2, the steel bar body 6 is moved to the left, thereby conveying the steel bar body 6 to the bottom of the cutting device 5, where it is cut by the cutting device 5. The overall operation is simple and convenient.

[0020] For details, please refer to Figure 1 and Figure 2 In this embodiment, the mounting mechanism 1 includes a base 101. A buffer groove 102 is provided in the middle of the right side inside the base 101. An L-shaped slider 105 is slidably connected to the inner surface of the buffer groove 102. A damper 103 is fixedly connected to the right end of the L-shaped slider 105. A spring 104 is slidably connected to the outer side of the damper 103. A mounting plate 106 is fixedly connected to the left side of the top of the L-shaped slider 105. Further reference Figure 1 , Figure 6 , Figure 7 and Figure 8 In this embodiment, the conveying mechanism 2 includes a first conveying roller 201 and a second conveying roller 202. The first conveying roller 201 and the second conveying roller 202 are arranged symmetrically up and down. Limiting brackets 203 are fixedly connected symmetrically up and down to the opposite sides of the front of the outer surfaces of the first conveying roller 201 and the second conveying roller 202. A pressure sensor 204 is fixedly connected to the bottom of the upper limiting bracket 203. Further reference Figure 6 , Figure 7 and Figure 8 In this embodiment, a drive shaft 205 is fixedly connected to the middle of the front end of both the first conveyor roller 201 and the second conveyor roller 202. An adjusting roller 207 is provided at the right end of both drive shafts 205. A drive belt 209 is rotatably connected to the middle of the outer surface of the adjusting roller 207 and the two drive shafts 205. The front end of the lower drive shaft 205 passes through the inner surface of the front limiting outer ring 206. A drive box 213 is rotatably connected to the front end of the drive shaft 205. A bearing 211 is rotatably connected to the outer surface of the lower drive shaft 205 near the rear side of the drive box 213. A support base 212 is fixedly connected to the lower side of the outer surface of the bearing 211. A limiting outer ring 206 is fixedly connected to the front and rear sides of the outer surfaces of the adjusting roller 207 and the two drive shafts 205. Further reference Figure 6 , Figure 7 and Figure 8 In this embodiment, a fixing ring seat 214 is fixedly connected to the front side of the outer surface of the limiting outer ring 206 located at the upper front of the left end. A trapezoidal slide seat 215 is fixedly connected to the right side of the outer surface of the fixing ring seat 214. A trapezoidal limiting block 217 is slidably connected to the left side of the inner surface of the trapezoidal slide seat 215. The left end of the trapezoidal limiting block 217 is fixedly connected to the right end of the support base 212. A fixing ring seat 218 is fixedly connected to the front side of the outer surface of the limiting outer ring 206 located at the front of the right end. A sliding bracket 219 is fixedly connected to the lower side of the outer surface of the fixing ring seat 218. A sliding groove seat 216 is slidably connected to the bottom of the sliding bracket 219. A limiting plate 208 is fixedly connected to the upper side of the right end of the outer surface of the trapezoidal slide seat 215. A spring assembly 220 is fixedly connected to the lower side of the right end of the outer surface of the sliding bracket 219. The right end of the spring assembly 220 is fixedly connected to the inner surface of the sliding groove seat 216. Further reference Figure 3 , Figure 5 and Figure 6In this embodiment, a slide block 210 is fixedly connected to the front end of the transmission shaft 205 located on the upper left side. A threaded rod 301 is threadedly connected to the middle of the inner surface of the slide block 210. A rotating shaft 305 is fixedly connected to both the upper and lower ends of the threaded rod 301. A bearing 302 is rotatably connected to the outer surface of both rotating shafts 305. An outer frame 303 is fixedly connected to the outer surface of both bearings 302. Further reference Figure 3 and Figure 5 In this embodiment, a drive box 304 is fixedly connected to the bottom of the outer frame 303. The rotating shaft 305 at the lower end passes through the middle of the inner surface of the lower bearing 302 and the lower side of the inner surface of the outer frame 303. The bottom of the rotating shaft 305 at the lower end is rotatably connected to the output end of the drive box 304. Drive box 213 drives drive shaft 205 to rotate. Under the action of drive belt 209, upper and lower conveying rollers 201 and 202 rotate relative to each other, thereby achieving the effect of conveying the steel bar body 6. The upper and lower distance between conveying rollers 201 and 202 can be adjusted by adjustment mechanism 3, so that the device can be applied to steel bar bodies 6 of various sizes. When adjusting the upper and lower height of conveying roller 201 by adjustment mechanism 3, trapezoidal slide 215 and sliding bracket 219 are linked. Adjusting roller 207 cooperates with the adjustment of conveying roller 201 so that drive belt 209 can be completely attached to the outside of roller to achieve the transmission effect. Through the adjustable clamping structure, it can flexibly adapt to steel bar bodies 6 of different diameters, thereby maintaining high efficiency in various construction scenarios.

[0021] Example 2: Based on Example 1, this example adds a support platform 4 to provide auxiliary support for the steel bar body 6 from the lower right side. An electric telescopic rod is installed at the protective mechanism 7 at the bottom of the support platform 4. By setting up the support platform 4 and the protective mechanism 7, the vertical height of the support platform 4 can be adjusted to match the height of the steel bar body 6.

[0022] For details, please refer to Figure 1 and Figure 2 In this embodiment, the top of the protective mechanism 7 located at the right end is fixedly connected to the bottom of the support platform 4, the bottom of the protective mechanism 7 located at the right end is fixedly connected to the middle of the right side of the top of the base 101, and the steel bar body 6 is slidably connected to the middle of the top of the support platform 4. The support platform 4 can support and lift the steel bar body 6 from below, so that the steel bar body 6 is always parallel to the installation mechanism 1 during the cutting process. To a certain extent, this can avoid the situation where the cross section of the steel bar body 6 is uneven when it is cut due to the tilt of the steel bar body 6.

[0023] Both drive box 2 304 and drive box 1 213 in this solution include an outer mounting box, a drive motor and a controller. The drive motor and controller are installed inside the outer mounting box. The controller here can be a motor controller that is compatible with the drive motor in the prior art, and can control the switching and rotation speed of the drive motor. The cutting device 5 in this solution includes a cutting blade. The blade is driven by a drive motor and a motor controller. The height of the blade and the drive device can be adjusted by a hydraulic cylinder and a hydraulic pump box 8. The hydraulic pump box 8 includes a mounting frame and a hydraulic pump. The hydraulic pump is installed inside the mounting frame and provides power to the hydraulic cylinder, so that it can move up and down with the blade, thereby cutting the steel bar body 6 of the required length according to the data provided by the rangefinder body 11. In this solution, the rangefinder body 11 can be the BD5-10 electric rebar rangefinder, which is suitable for rebar processing, can accurately measure the length of the rebar, and can control the cutting blade to cut it through the controller 10. The controller 10 in this solution can be the existing BXS08-JCQ-500FM oil pump flow controller, which uses motor frequency conversion speed regulation and adaptive control technology to achieve stepless adjustment of oil pump flow. The protective mechanism 7 in this scheme includes an electric telescopic rod and a spring. The spring is installed in the middle of the outer side of the electric telescopic rod. The upper and lower ends of the spring are limited by limiting plates. The height of the support platform 4 can be adjusted by adjusting the electric telescopic rod. The protective mechanism 7 on the left side works with the hydraulic cylinder at the cutting device 5 to extend and retract vertically. Since the above devices are all very mature products in the prior art, they will not be described in detail in this application.

[0024] It should be noted that the specific installation method, circuit connection method and control method of the drive box 2 304 and drive box 1 213 used in this invention are all conventional designs, and will not be described in detail in this invention.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A rebar cutting device for construction, comprising an installation mechanism (1), characterized in that: A collection box (9) is placed on the left side of the top of the installation mechanism (1). A conveying mechanism (2) is installed on the front part of the right side of the top of the installation mechanism (1). A steel bar body (6) is slidably connected to the inner surface of the conveying mechanism (2). A support platform (4) is contacted on the lower side of the right end of the outer surface of the steel bar body (6). An adjustment mechanism (3) is installed at the front end of the conveying mechanism (2). A cutting device (5) is installed on the top of the adjustment mechanism (3). A hydraulic pump box (8) is fixedly connected to the left side of the top of the cutting device (5). A controller (10) is fixedly connected to the right side of the top of the cutting device (5). The steel bar body (6) is rotatably connected to the inner side of the conveying mechanism (2). A protective mechanism (7) is fixedly connected to the bottom of the support platform (4) and the left end of the outer surface of the cutting device (5). A rangefinder body (11) is fixedly connected to the bottom of the controller (10).

2. The rebar cutting device according to claim 1, characterized in that: The mounting mechanism (1) includes a base (101), a buffer groove (102) is provided in the middle of the right side of the base (101), an L-shaped slider (105) is slidably connected to the inner surface of the buffer groove (102), a damper (103) is fixedly connected to the right end of the L-shaped slider (105), a spring (104) is slidably connected to the outer side of the damper (103), and a mounting plate (106) is fixedly connected to the left side of the top of the L-shaped slider (105).

3. The rebar cutting device according to claim 1, characterized in that: The conveying mechanism (2) includes a first conveying roller (201) and a second conveying roller (202). The first conveying roller (201) and the second conveying roller (202) are arranged symmetrically up and down. Limiting brackets (203) are fixedly connected symmetrically up and down to the opposite sides of the front of the outer surfaces of the first conveying roller (201) and the second conveying roller (202). A pressure sensor (204) is fixedly connected to the bottom of the upper limiting bracket (203).

4. A rebar cutting device according to claim 3, characterized in that: A drive shaft (205) is fixedly connected to the middle of the front end of both conveying roller 1 (201) and conveying roller 2 (202). An adjusting roller (207) is provided at the right end of both drive shafts (205). A drive belt (209) is rotatably connected to the middle of the outer surface of the adjusting roller (207) and the two drive shafts (205). The front end of the lower drive shaft (205) passes through the inner surface of the front limiting outer ring 1 (206). A drive box 1 (213) is rotatably connected to the front end of the drive shaft (205). A bearing 1 (211) is rotatably connected to the outer surface of the lower drive shaft (205) near the rear side of the drive box 1 (213). A support base 2 (212) is fixedly connected to the lower side of the outer surface of the bearing 1 (211). A limiting outer ring (206) is fixedly connected to the front and rear sides of the outer surface of the adjusting roller (207) and the two drive shafts (205).

5. A rebar cutting device according to claim 4, characterized in that: A fixing ring seat 1 (214) is fixedly connected to the front side of the outer surface of the limiting outer ring (206) located on the upper front of the left end. A trapezoidal slide seat 2 (215) is fixedly connected to the right side of the outer surface of the fixing ring seat 1 (214). A trapezoidal limiting block (217) is slidably connected to the left side of the inner surface of the trapezoidal slide seat 2 (215). The left end of the trapezoidal limiting block (217) is fixedly connected to the right end of the support base 2 (212). The front side of the outer surface of the limiting outer ring (206) located on the front of the right end is fixedly connected to... There is a fixed ring seat (218), and a sliding bracket (219) is fixedly connected to the lower side of the outer surface of the fixed ring seat (218). A sliding groove seat (216) is slidably connected to the bottom of the sliding bracket (219). A limit plate (208) is fixedly connected to the upper side of the right end of the outer surface of the trapezoidal sliding seat (215). A spring assembly (220) is fixedly connected to the lower side of the right end of the outer surface of the sliding bracket (219). The right end of the spring assembly (220) is fixedly connected to the inner surface of the sliding groove seat (216).

6. A rebar cutting device according to claim 4, characterized in that: The front end of the drive shaft (205) located on the upper left side is fixedly connected to a slide block (210). The inner surface of the slide block (210) is threaded with a threaded rod (301). The upper and lower ends of the threaded rod (301) are fixedly connected to a rotating shaft (305). The outer surfaces of the two rotating shafts (305) are rotatably connected to a bearing (302). The outer surfaces of the two bearings (302) are fixedly connected to an outer frame (303).

7. A rebar cutting device according to claim 6, characterized in that: The bottom of the outer frame (303) is fixedly connected to the drive box two (304). The rotating shaft (305) located at the lower end passes through the inner surface of the lower bearing two (302) and the middle of the lower side of the inner surface of the outer frame (303). The bottom of the rotating shaft (305) located at the lower end is rotatably connected to the output end of the drive box two (304).

8. A rebar cutting device according to claim 2, characterized in that: The top of the protective mechanism (7) located at the right end is fixedly connected to the bottom of the support platform (4), and the bottom of the protective mechanism (7) located at the right end is fixedly connected to the middle of the top right side of the base (101). The steel bar body (6) is slidably connected to the middle of the top of the support platform (4).

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