Construction engineering construction steel bar blanking machine

Abstract

The invention relates to the technical field of steel bar blanking machines, in particular to a construction engineering construction steel bar blanking machine. According to the technical scheme, the device comprises a rotating disc, a base, a mounting frame, a pressurizing barrel and a positioning plate, a material groove is formed in the rotating disc, a stroke groove is formed in the rotating disc, the positioning plate is arranged in the stroke groove, a first hydraulic rod is arranged on one side of the upper portion of the rotating disc, a cutting head is arranged at the lower end of the first hydraulic rod, and a supporting column is arranged at the lower end of the rotating disc; a ball is installed at the lower end of the supporting column, a pressurizing cylinder is fixedly arranged at the center of the rotating disc, an installation cylinder is installed on the outer wall of the pressurizing cylinder in a communicating mode, a piston is installed in the installation cylinder in a sliding mode, and a piston rod is arranged at one end of the piston. By means of the stock bins and the positioning plates which are distributed in the rotary disc in an annular array mode, steel bars are pre-stored, stored, discharged and cut off at the same time, and the machining efficiency of the steel bar discharging machine is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar blanking machines, and in particular to a steel bar blanking machine for construction engineering. Background Art

[0002] In construction projects, steel bars are an important structural material, mainly used to reinforce and strengthen concrete structures. Steel bars are mainly used in tensile members of concrete structures to withstand tensile forces; they can also improve the compressive properties of concrete. Structural design in construction projects will arrange steel bars according to load conditions and safety requirements to ensure the stability and durability of the structure.

[0003] A steel bar feeder is a device specially used for cutting, feeding and processing steel bars. It is usually widely used in construction sites to quickly and accurately process steel bars of required length and shape. However, when cutting steel bars, it is necessary to manually load and unload them repeatedly, and the unloading process cannot be completed. The steel bar feeder cannot be used, which reduces the processing efficiency of the steel bar feeder. Therefore, those skilled in the art provide a steel bar feeder for construction projects to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the background technology and to provide a steel bar cutting machine for construction engineering.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a construction engineering steel bar feeding machine, comprising a turntable, a base, a mounting frame, a pressure cylinder and a positioning plate, the turntable is provided with material troughs which are longitudinally distributed and have different diameters, the material troughs are distributed in a ring array inside the turntable, the turntable is provided with travel grooves which are distributed in a ring array and pass through the material troughs and the upper and lower ends of the turntable, a positioning plate which passes through the material trough is arranged inside the travel groove, a hydraulic rod is arranged on one side above the turntable, a cutting head is arranged at a lower end of the hydraulic rod, support columns distributed in a ring array are arranged at the lower end of the turntable, a ball bearing is installed at the lower end of the support column, a pressure cylinder is fixed at the center of the turntable, the outer wall of the pressure cylinder is connected to the mounting cylinders distributed in a ring array, a piston is slidably installed inside the mounting cylinder, and a plug rod connected to the positioning plate is arranged at one end of the piston.

[0006] Preferably, a one-way valve nozzle is provided at the lower end of the pressure cylinder, and a pressure gauge is installed in the upper end of the pressure cylinder. The one-way valve nozzle is used for one-way flow of the pressure medium, and the pressure inside the pressure cylinder is detected by the pressure gauge.

[0007] Preferably, a pressure pump is provided at the upper end of the base, a hose is provided at the output end of the pressure pump, a docking nozzle is connected to one end of the hose, and a hydraulic rod 2 is provided at the upper end of the base with a telescopic end connected to the lower end of the docking nozzle. The pressure gas delivered by the extrusion pump is delivered through the hose, and is inserted into the inside of the one-way valve seat through the docking nozzle and input into the pressure cylinder. The longitudinal movement of the hydraulic rod 2 drives the docking nozzle to dock and release the docking relationship with the one-way valve nozzle.

[0008] Preferably, an annular reinforcement ring is provided between the support columns, an annular gear ring is provided on the inner wall of the support column, a motor is provided at the upper end of the base, and a gear meshing with the gear ring is provided at the output end of the motor. The reinforcement ring connects the support columns together, and the driving force of the motor acts on the gear, driving the gear to push the gear ring, thereby driving the reinforcement ring with the stroke as a whole to rotate synchronously.

[0009] Preferably, a pointer is provided at one end of the positioning plate, and a scale plate is provided at the upper end of the turntable, which is distributed in a circular array and located on one side of the travel groove. The pointer corresponds to the position of the scale plate, and then the position of the positioning plate is understood to determine the cutting length of the steel bar.

[0010] Preferably, a sliding sleeve is embedded in one end of the installation cylinder, and one end of the plug rod is slidably inserted into the sliding sleeve. The plug rod slides in the sliding sleeve, so that when the plug rod slides in the installation cylinder, the plug rod is guided to slide, and the piston prevents pressure leakage inside the plug rod.

[0011] Preferably, an annular guide rail is provided at the upper end of the base, and the ball is installed in a rolling manner inside the guide rail. The guide rail provides rolling support for the ball, so that the ball is guided when rolling, and the stability of the ball is improved.

[0012] Preferably, the outer side of the turntable is sleeved with a mounting frame distributed in a circular array, and the mounting frame is provided with symmetrically distributed stroke plates, a spring is provided between the stroke plate and the mounting frame, and the stroke plate is rotatably mounted with a guide wheel at one end, and a guide frame located on one side of the guide wheel is provided at one side of the upper end of the mounting frame. The stroke plate is elastically supported inside the mounting frame by the spring, so that the guide wheel is elastically supported, the guide wheel slides and guides the steel bars entering the trough, and the guide frame supports the spring inserted into the guide wheel.

[0013] Preferably, the installation frame is provided with symmetrically distributed through holes, and the travel plates are provided with positioning rods located inside the spring and slidingly passing through the spring at opposite ends. The positioning rods slide inside the springs, and the guide rods follow the movement of the travel plates and slide inside the through holes to prevent the springs from deflecting outwards and guide the springs during the expansion and contraction process.

[0014] Preferably, electric push rods are symmetrically distributed on both sides above the base and connected to the support columns, and the telescopic ends of the electric push rods are provided with lifting rings fixed to the lower end of the installation frame and sleeved on the outer side of the turntable. When the electric push rods are used, they drive the lifting rings to move longitudinally, thereby moving the installation frame longitudinally to adjust the position of the material trough corresponding to the guide wheel.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention inserts steel bars for construction projects into a material trough. The material trough is adapted to the shape of the steel bars, and the material troughs are distributed in a ring array. A positioning plate for positioning the steel bars is arranged inside the material trough. The positioning plate is movable to adjust the length of the steel bars at the opening of the material trough, thereby determining the cutting length of the steel bars. During the steel bar cutting process, the steel bars rotated to one side are taken and stored. The steel bar cutting process can synchronize the taking and unloading of the steel bars, thereby improving the processing efficiency of the steel bar unloading machine in the construction project. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention;

[0018] Figure 2 It is a bottom-up three-dimensional structural schematic diagram of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the gear ring of the present invention from top view;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the pressurizing cylinder of the present invention from top view;

[0021] Figure 5 It is a schematic diagram of a partial main cross-sectional three-dimensional structure of the pressurizing cylinder of the present invention;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the material trough of the present invention from a side view;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the installation frame of the present invention from a side view.

[0024] 1. Hydraulic rod one; 2. Cutting head; 3. Turntable; 4. Material trough; 5. Support column; 6. Guide rail; 7. Base; 8. Mounting frame; 9. Stroke groove; 10. Scale plate; 11. Electric push rod; 12. Gear ring; 13. Reinforcement ring; 14. Lifting ring; 15. Pressurizing cylinder; 16. Positioning plate; 17. Pointer; 18. Pressure gauge; 19. Mounting cylinder; 20. Plug rod; 21. Sleeve; 22. Piston; 23. Ball; 24. Docking nozzle; 25. Hydraulic rod two; 26. Pressurizing pump; 27. Hose; 28. One-way valve nozzle; 29. ​​Through hole; 30. Guide wheel; 31. Spring; 32. Stroke plate; 33. Positioning rod; 34. Guide frame; 35. Motor; 36. Gear. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 7 , the present invention provides three embodiments:

[0027] Embodiment 1:

[0028] A steel bar feeding machine for construction engineering, comprising a turntable 3, a base 7, an installation frame 8, a pressure cylinder 15 and a positioning plate 16, wherein the turntable 3 is provided with longitudinally distributed material troughs 4 of different diameters, the material troughs 4 are distributed in a circular array inside the turntable 3, the turntable 3 is provided with travel grooves 9 distributed in a circular array and penetrating the material troughs 4 and the upper and lower ends of the turntable 3, the travel grooves 9 are provided with a positioning plate 16 penetrating the material trough 4, a hydraulic rod 1 is provided on one side above the turntable 3, a cutting head 2 is provided at the lower end of the hydraulic rod 1, and support columns 5 distributed in a circular array are provided at the lower end of the turntable 3, and a ball bearing 23 is installed at the lower end of the support column 5;

[0029] A sliding sleeve 21 is embedded in one end of the installation cylinder 19, and one end of the plug rod 20 is slidably inserted into the sliding sleeve 21;

[0030] An annular reinforcement ring 13 is provided between the support columns 5, an annular gear ring 12 is provided on the inner wall of the support column 5, a motor 35 is provided on the upper end of the base 7, and a gear 36 meshing with the gear ring 12 is provided at the output end of the motor 35;

[0031] In this embodiment, the material trough 4 is 6mm, 8mm, 10mm, and 12mm from top to bottom. 6mm is used for small building structures or concrete reinforcement, 8mm is mainly used for small and medium-sized steel bar structures such as slabs, columns, and floor slabs, 10mm is suitable for beams, columns and other large concrete structures, and 12mm is used for important structures such as large-span beams and columns. According to the purpose of the steel bars in the construction project, they are inserted into the corresponding material trough 4. One end of the steel bar is limited by the positioning plate 16. When it is located below the cutting head 2, the hydraulic rod 1 drives the cutting head 2 to descend to cut the steel bar. The steel bar after cutting The steel bars do not need to be taken out, and the motor 35 drives the gear 36 to rotate. The gear 36 pushes the gear ring 12, thereby driving the turntable 3 to rotate. When the turntable 3 rotates, it drives the material trough 4 to rotate a material position. The pre-stored steel bars are located below the cutting head 2 and are ready for cutting. During this process, the steel bars that are rotated to one side after cutting are taken out, and then the steel bars are unloaded. After unloading, the steel bars to be processed are pre-stored. The cutting process and storage and retrieval are carried out simultaneously without interfering with each other, which optimizes the problem that the storage and retrieval cannot perform steel bar cutting process, and the efficiency of the steel bar unloading machine for steel bar cutting process is improved.

[0032] Embodiment 2:

[0033] It includes a turntable 3, a base 7, a mounting frame 8, a pressurizing cylinder 15 and a positioning plate 16. The turntable 3 is provided with material troughs 4 which are longitudinally distributed and have different diameters. The material troughs 4 are distributed in a circular array inside the turntable 3. The turntable 3 is provided with travel grooves 9 which are distributed in a circular array and penetrate the material troughs 4 and the upper and lower ends of the turntable 3. The travel grooves 9 are provided with a positioning plate 16 which penetrates the material trough 4. A hydraulic rod 1 is provided on one side above the turntable 3. A cutting head 2 is provided at the lower end of the hydraulic rod 1. The lower end of the turntable 3 is provided with support columns 5 which are distributed in a circular array. A ball bearing 23 is installed at the lower end of the support columns 5.

[0034] A sliding sleeve 21 is embedded in one end of the installation cylinder 19, and one end of the plug rod 20 is slidably inserted into the sliding sleeve 21;

[0035] An annular reinforcement ring 13 is provided between the support columns 5, an annular gear ring 12 is provided on the inner wall of the support column 5, a motor 35 is provided on the upper end of the base 7, and a gear 36 meshing with the gear ring 12 is provided at the output end of the motor 35;

[0036] The material trough 4 is 6mm, 8mm, 10mm, and 12mm from top to bottom. 6mm is used for small building structures or concrete reinforcement, 8mm is mainly used for small and medium-sized steel structures such as slabs, columns, and floor slabs, 10mm is suitable for beams, columns, and other large concrete structures, and 12mm is used for important structures such as large-span beams and columns. According to the purpose of the steel bars in the construction project, they are inserted into the corresponding material trough 4. One end of the steel bar is limited by the positioning plate 16. When it is located below the cutting head 2, the hydraulic rod 1 drives the cutting head 2 to descend to cut the steel bar. The cut steel bar does not need to be To take out, the motor 35 drives the gear 36 to rotate, and the gear 36 pushes the gear ring 12, thereby driving the turntable 3 to rotate. When the turntable 3 rotates, it drives the material trough 4 to rotate a material position. The pre-stored steel bars are located below the cutting head 2 and are ready for cutting. During this process, the steel bars that are rotated to one side after cutting are taken out, and then the steel bars are unloaded. After unloading, the steel bars to be processed are pre-stored. The cutting process and storage and retrieval are carried out simultaneously without interfering with each other, which optimizes the problem that the storage and retrieval cannot carry out the steel bar cutting process, and the efficiency of the steel bar unloading machine for steel bar cutting processing is improved.

[0037] A pressurizing cylinder 15 is fixed at the center of the turntable 3. The outer wall of the pressurizing cylinder 15 is connected to the mounting cylinders 19 distributed in a ring array. A piston 22 is slidably mounted inside the mounting cylinder 19. One end of the piston 22 is provided with a plug rod 20 connected to the positioning plate 16.

[0038] A one-way valve nozzle 28 is provided at the lower end of the pressurizing cylinder 15, and a pressure gauge 18 is installed in the upper end of the pressurizing cylinder 15;

[0039] A pressure pump 26 is provided at the upper end of the base 7, a hose 27 is provided at the output end of the pressure pump 26, one end of the hose 27 is connected to the docking nozzle 24, and a hydraulic rod 25 is provided at the upper end of the base 7, the telescopic end of which is connected to the lower end of the docking nozzle 24;

[0040] A pointer 17 is provided at one end of the positioning plate 16, and a scale plate 10 is provided at the upper end of the turntable 3 and is distributed in a ring array and is located on one side of the travel groove 9;

[0041] In this embodiment, hydraulic rod 25 drives docking nozzle 24 to be inserted into the inside of one-way valve nozzle 28, and pressure medium is transported to the inside of docking nozzle 24 through pressure pump 26, and then enters into pressurizing cylinder 15 through one-way valve nozzle 28. Pressure medium squeezes piston 22, and multiple pistons 22 move simultaneously. Pressure condition inside pressurizing cylinder 15 is known through pressure gauge 18. When piston 22 moves, it drives positioning plate 16 to move inside stroke groove 9. Position of positioning plate 16 is known through position of pointer 17 corresponding to scale plate 10, and then position of positioning plate 16 in stroke groove 9 is determined. After positioning plate 16 is positioned, length of cut steel bars is adjusted, and positioning plate 16 is adjusted simultaneously for multiple material troughs 4. In construction projects, cutting length of steel bars is adjustable, and it is convenient to use.

[0042] Embodiment three:

[0043] It includes a turntable 3, a base 7, a mounting frame 8, a pressurizing cylinder 15 and a positioning plate 16. The turntable 3 is provided with material troughs 4 which are longitudinally distributed and have different diameters. The material troughs 4 are distributed in a circular array inside the turntable 3. The turntable 3 is provided with travel grooves 9 which are distributed in a circular array and penetrate the material troughs 4 and the upper and lower ends of the turntable 3. The travel grooves 9 are provided with a positioning plate 16 which penetrates the material trough 4. A hydraulic rod 1 is provided on one side above the turntable 3. A cutting head 2 is provided at the lower end of the hydraulic rod 1. The lower end of the turntable 3 is provided with support columns 5 which are distributed in a circular array. A ball bearing 23 is installed at the lower end of the support columns 5.

[0044] A sliding sleeve 21 is embedded in one end of the installation cylinder 19, and one end of the plug rod 20 is slidably inserted into the sliding sleeve 21;

[0045] An annular reinforcement ring 13 is provided between the support columns 5, an annular gear ring 12 is provided on the inner wall of the support column 5, a motor 35 is provided on the upper end of the base 7, and a gear 36 meshing with the gear ring 12 is provided at the output end of the motor 35;

[0046] The material trough 4 is 6mm, 8mm, 10mm, and 12mm from top to bottom. 6mm is used for small building structures or concrete reinforcement, 8mm is mainly used for small and medium-sized steel structures such as slabs, columns, and floor slabs, 10mm is suitable for beams, columns, and other large concrete structures, and 12mm is used for important structures such as large-span beams and columns. According to the purpose of the steel bars in the construction project, they are inserted into the corresponding material trough 4. One end of the steel bar is limited by the positioning plate 16. When it is located below the cutting head 2, the hydraulic rod 1 drives the cutting head 2 to descend to cut the steel bar. The cut steel bar does not need to be To take out, the motor 35 drives the gear 36 to rotate, and the gear 36 pushes the gear ring 12, thereby driving the turntable 3 to rotate. When the turntable 3 rotates, it drives the material trough 4 to rotate a material position. The pre-stored steel bars are located below the cutting head 2 and are ready for cutting. During this process, the steel bars that are rotated to one side after cutting are taken out, and then the steel bars are unloaded. After unloading, the steel bars to be processed are pre-stored. The cutting process and storage and retrieval are carried out simultaneously without interfering with each other, which optimizes the problem that the storage and retrieval cannot carry out the steel bar cutting process, and the efficiency of the steel bar unloading machine for steel bar cutting processing is improved.

[0047] A pressurizing cylinder 15 is fixed at the center of the turntable 3. The outer wall of the pressurizing cylinder 15 is connected to the mounting cylinders 19 distributed in a ring array. A piston 22 is slidably mounted inside the mounting cylinder 19. One end of the piston 22 is provided with a plug rod 20 connected to the positioning plate 16.

[0048] A one-way valve nozzle 28 is provided at the lower end of the pressurizing cylinder 15, and a pressure gauge 18 is installed in the upper end of the pressurizing cylinder 15;

[0049] A pressure pump 26 is provided at the upper end of the base 7, a hose 27 is provided at the output end of the pressure pump 26, one end of the hose 27 is connected to the docking nozzle 24, and a hydraulic rod 25 is provided at the upper end of the base 7, the telescopic end of which is connected to the lower end of the docking nozzle 24;

[0050] A pointer 17 is provided at one end of the positioning plate 16, and a scale plate 10 is provided at the upper end of the turntable 3 and is distributed in a ring array and is located on one side of the travel groove 9;

[0051] The hydraulic rod 25 drives the docking nozzle 24 to be inserted into the one-way valve nozzle 28. The pressure medium is transported to the docking nozzle 24 through the pressure pump 26, and then enters the pressurizing cylinder 15 through the one-way valve nozzle 28. The pressure medium squeezes the piston 22, and multiple pistons 22 move at the same time. The pressure condition inside the pressurizing cylinder 15 is known through the pressure gauge 18. When the piston 22 moves, it drives the positioning plate 16 to move inside the stroke groove 9. The position of the positioning plate 16 is known through the position of the pointer 17 corresponding to the scale plate 10, and then the position of the positioning plate 16 in the stroke groove 9 is determined. After the positioning plate 16 is positioned, the length of the cut steel bars is adjusted. Multiple material troughs 4 adjust the positioning plate 16 at the same time. In construction projects, the cutting length of the steel bars is adjustable, which is convenient to use.

[0052] An annular guide rail 6 is provided at the upper end of the base 7, and the ball 23 is rollingly installed inside the guide rail 6;

[0053] The outer side of the turntable 3 is sleeved with a mounting frame 8 distributed in a ring array, and the mounting frame 8 is provided with symmetrically distributed travel plates 32, a spring 31 is provided between the travel plate 32 and the mounting frame 8, and a guide wheel 30 is rotatably installed at one end of the travel plate 32, and a guide frame 34 located on one side of the guide wheel 30 is provided at one side of the upper end of the mounting frame 8;

[0054] The installation frame 8 is provided with symmetrically distributed through holes 29, and the travel plate 32 is provided with a positioning rod 33 located inside the spring 31 and slidingly passing through the travel plate 32 at the opposite end.

[0055] The upper and lower sides of the base 7 are provided with symmetrically distributed electric push rods 11 connected to the support column 5, and the telescopic ends of the electric push rods 11 are provided with lifting rings 14 fixed to the lower end of the mounting frame 8 and sleeved to the outer side of the turntable 3;

[0056] In this embodiment, the steel bar is inserted through the guide frame 34, enters the guide wheel 30 and is inserted into the material trough 4. When the steel bar is inserted into the inside of the material trough 4, it is guided by sliding, which is convenient for placing the material trough 4 before cutting. The guide wheel 30 is elastically supported by the spring 31, so that after the steel bar is inserted into the inside of the material trough 4, it is elastically clamped. At the same time, the electric push rod 11 drives the lifting ring 14 to move longitudinally. By adjusting the height of the guide wheel 30, the guide wheel 30 can correspond to material troughs 4 with different apertures. Therefore, when cutting steel bars of different specifications, the position structure of the steel bar is flexible to use and has strong adaptability.

[0057] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A steel bar cutting machine for construction engineering, comprising a turntable (3), a base (7), a mounting frame (8), a pressure cylinder (15) and a positioning plate (16), characterized in that: The turntable (3) is provided with material troughs (4) which are longitudinally distributed and have different diameters. The material troughs (4) are distributed in a circular array inside the turntable (3). The turntable (3) is provided with travel grooves (9) which are distributed in a circular array and penetrate the material troughs (4) and the upper and lower ends of the turntable (3). A positioning plate (16) which penetrates the material troughs (4) is arranged inside the travel grooves (9). A hydraulic rod (1) is arranged on one side above the turntable (3). The lower end of the hydraulic rod (1) is provided with A cutting head (2), the lower end of the turntable (3) is provided with support columns (5) distributed in a ring array, the lower end of the support columns (5) is installed with a ball (23), a pressure cylinder (15) is fixed at the center of the turntable (3), the outer wall of the pressure cylinder (15) is connected to the installation cylinder (19) distributed in a ring array, a piston (22) is slidably installed inside the installation cylinder (19), and one end of the piston (22) is provided with a plug rod (20) connected to the positioning plate (16).

2. A construction engineering steel bar cutting machine according to claim 1, characterized in that: The lower end of the pressurizing cylinder (15) is provided with a one-way valve nozzle (28), and the upper end of the pressurizing cylinder (15) is connected to the interior and is equipped with a pressure gauge (18).

3. A construction engineering steel bar cutting machine according to claim 1, characterized in that: A pressure pump (26) is arranged at the upper end of the base (7), a hose (27) is arranged at the output end of the pressure pump (26), one end of the hose (27) is connected to a docking nozzle (24), and a hydraulic rod (25) is arranged at the upper end of the base (7) with a telescopic end connected to the lower end of the docking nozzle (24).

4. A construction engineering steel bar cutting machine according to claim 1, characterized in that: An annular reinforcement ring (13) is provided between the support columns (5), an annular gear ring (12) is provided on the inner wall of the support column (5), a motor (35) is provided at the upper end of the base (7), and a gear (36) meshing with the gear ring (12) is provided at the output end of the motor (35).

5. A construction engineering steel bar cutting machine according to claim 1, characterized in that: A pointer (17) is provided at one end of the positioning plate (16), and a scale plate (10) distributed in a ring array and located on one side of the travel groove (9) is provided at the upper end of the turntable (3).

6. A construction engineering steel bar cutting machine according to claim 1, characterized in that: A sliding sleeve (21) is embedded and installed inside one end of the installation tube (19), and one end of the plug rod (20) is slidably inserted into the interior of the sliding sleeve (21).

7. A steel bar cutting machine for construction engineering according to claim 1, characterized in that: An annular guide rail (6) is provided at the upper end of the base (7), and the ball (23) is rollingly installed inside the guide rail (6).

8. The steel bar cutting machine for construction engineering according to claim 1, characterized in that: The outer side of the turntable (3) is sleeved with a mounting frame (8) distributed in a ring array, and the interior of the mounting frame (8) is provided with a symmetrically distributed stroke plate (32), a spring (31) is provided between the stroke plate (32) and the mounting frame (8), a guide wheel (30) is rotatably mounted on one end of the stroke plate (32), and a guide frame (34) located on one side of the guide wheel (30) is provided on one side of the upper end of the mounting frame (8).

9. A steel bar cutting machine for construction engineering according to claim 8, characterized in that: The installation frame (8) is provided with symmetrically distributed through holes (29), and the travel plate (32) is provided with a positioning rod (33) located inside the spring (31) and slidingly passing through the spring (31) at the opposite end.

10. A steel bar cutting machine for construction engineering according to claim 9, characterized in that: Electric push rods (11) are symmetrically distributed and connected to the support columns (5) on both sides above the base (7), and a lifting ring (14) is fixed to the lower end of the installation frame (8) and sleeved on the outer side of the turntable (3) at the telescopic end of the electric push rod (11).

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