Steel bar cutting device for building construction

Abstract

The invention provides a reinforcing steel bar cutting device for building construction, and mainly relates to the technical field of reinforcing steel bar cutting. The reinforcing steel bar cutting device for building construction comprises a supporting frame, a reinforcing steel bar guiding mechanism, reinforcing steel bar fixing mechanisms, a reinforcing steel bar cutting mechanism and a metal filing recycling box are arranged in the supporting frame, and the two reinforcing steel bar fixing mechanisms are symmetrically arranged relative to the reinforcing steel bar cutting mechanism; the supporting frame comprises a rectangular lower frame, supporting rods are arranged at the four corners of the rectangular lower frame, a top plate is fixedly connected to the tops of the supporting rods, a supporting bracket is arranged in the supporting frame and comprises two symmetrical parts, and a cutting gap is formed between the two parts of the supporting bracket. The reinforcing steel bar cutting device has the beneficial effects that reinforcing steel bars can be effectively fixed and automatically cut, the reinforcing steel bar fixing structure can effectively position and fix one reinforcing steel bar or a bundle of reinforcing steel bars, the use adaptability is good, the reinforcing steel bar cutting efficiency is improved, and the operation safety is high.

Description

Technical Field

[0001] This invention relates to the field of rebar cutting technology, specifically a rebar cutting device for construction. Background Technology

[0002] During construction, cement is often used to construct precast concrete components. These components typically require a steel reinforcement framework before cement is poured in. The framework is prepared by using a steel bar cutter to cut the steel bars into segments of the required length.

[0003] Rebar cutting is a crucial and frequent task. Currently, common rebar cutting devices mainly include manual and electric cutting machines. Manual cutting machines rely on manual operation, resulting in high labor intensity and low cutting efficiency, making them unsuitable for large-scale construction needs. Electric cutting machines use a pressure bar to drive a motor-driven saw blade to cut the rebar. However, existing equipment requires manual handling of the pressure bar. Each time a rebar is cut, the pressure bar must be lifted, the rebar released, and the next rebar secured before the bar is lowered again. This process involves manually clamping or releasing the rebar after each cut, which is cumbersome and inefficient. Furthermore, the rebar is prone to wobbling during cutting, affecting cutting accuracy and posing significant safety hazards. Additionally, the flying metal shavings generated during cutting pollute the construction environment and may injure operators. Therefore, there is an urgent need for a rebar cutting device for construction that can solve these problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a steel bar cutting device for construction, which can effectively fix steel bars and automatically cut them. The steel bar fixing mechanism can effectively position and fix a single steel bar or a bundle of steel bars, has good adaptability, improves steel bar cutting efficiency, and has high operational safety.

[0005] To achieve the above objectives, the present invention employs the following technical solution: A steel bar cutting device for construction includes a support frame, in which a steel bar guiding mechanism, a steel bar fixing mechanism, a steel bar cutting mechanism, and a metal scrap collection box are respectively provided. The steel bar fixing mechanism is arranged symmetrically with respect to the steel bar cutting mechanism in two sets. The support frame includes a rectangular lower frame, with support rods at the four corners of the rectangular lower frame. A top plate is fixedly connected to the top of each support rod. The support frame includes a support bracket, which consists of two symmetrical parts with a cutting gap between the two parts. The rebar fixing mechanism includes a lower limit block, the upper end face of which is V-shaped. The lower limit block is fixedly installed on a support bracket. Several insertion gaps are provided in the lower limit block. The rebar fixing mechanism also includes an upper pressure block. Several V-shaped inserts are arranged at equal intervals at the bottom of the upper pressure block. The V-shaped inserts are adapted to the insertion gaps. A lifting device is fixedly connected to the upper pressure block. The cutting mechanism includes a second lifting device, a cutting machine cover is fixedly connected to the bottom of the second lifting device, a drive motor is fixedly installed on one side of the cutting machine cover, a cutting blade is rotatably installed in the cutting machine cover, and a protective cover is installed at the bottom of the second lifting device.

[0006] The support frame has two support plates at the bottom, and each support plate has a caster wheel at both ends at the bottom. The support frame has handrails on both sides, and the caster wheel includes omnidirectional wheels and directional wheels.

[0007] The rebar guiding mechanism includes a V-shaped receiving block with an anti-friction layer installed on it. The rebar guiding mechanism also includes several columns, which are fixedly connected to a support bracket. Each column has a rotating shaft rotatably installed on one side. Several connecting blocks are installed on the support bracket. The lower end of the rotating shaft is rotatably connected to the support bracket through the connecting blocks. An anti-friction sleeve is installed on the rotating shaft. The lifting device includes a hydraulic cylinder, which is fixedly installed on the top plate. The actuator of the hydraulic cylinder penetrates the top plate. A telescopic rod is slidably installed at the bottom of the hydraulic cylinder. An upper pressure block is fixedly connected to the bottom of the telescopic rod. Several guide cylinders are fixedly installed at the bottom of the top plate. A guide rod is slidably installed in the guide cylinder. An upper pressure block is fixedly connected to the lower end of the guide rod. Several triangular fixing plates are fixedly connected to the outside of the guide cylinder. The top of the triangular fixing plates is fixedly connected to the top plate.

[0008] The lifting device 2 structure includes a hydraulic cylinder 2, which is fixedly installed on the top plate. The actuator of the hydraulic cylinder 2 passes through the top plate. A telescopic rod 2 is slidably installed at the bottom of the hydraulic cylinder 2. The bottom of the telescopic rod 2 is fixedly connected to the cutting machine cover. Several guide cylinders 2 are fixedly installed at the bottom of the top plate. Guide rods 2 are slidably installed in the guide cylinders 2. The lower end of the guide rods 2 is fixedly connected to a guide frame. The guide frame is fixedly connected to the cutting machine cover through a connecting rod.

[0009] The metal scrap recycling bin is fixedly equipped with handles on both sides.

[0010] A support plate assembly and a limiting plate assembly are fixedly connected to the lower frame of the rectangle, the metal scrap recycling box is placed on the support plate assembly, and the limiting plate assembly and the support bracket restrict the horizontal position of the metal scrap recycling box.

[0011] Compared with the prior art, the beneficial effects of the present invention are: This invention supports and guides steel bars through a steel bar guiding mechanism, enabling the steel bars to move conveniently within the device. The steel bar fixing mechanism can effectively position and fix a single steel bar or a bundle of steel bars. It has good adaptability, improves steel bar cutting efficiency, and has high operational safety. Metal debris generated during the cutting process can be collected in a timely manner, avoiding pollution and safety hazards. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall first-view structure of the present invention; Figure 2 This is a schematic diagram of the overall second-view structure of the present invention; Figure 3 This is a schematic diagram of the structure of the present invention from a first-view perspective after the protective cover has been removed; Figure 4 This is a schematic diagram of the structure from a second perspective after the protective cover of the present invention has been removed; Figure 5 This is the present invention. Figure 4 A magnified schematic diagram of part A in the middle.

[0013] The following are the labels in the attached diagram: 1. Support frame; 2. Rebar guiding mechanism; 3. Rebar fixing mechanism; 4. Rebar cutting mechanism; 5. Metal scrap recycling bin; 10. Rectangular lower frame; 11. Support rod; 12. Top plate; 13. Support bracket; 16. Support plate; 17. Casters; 18. Handrail; 20. V-shaped receiving block; 21. Column; 22. Rotating shaft; 23. Connecting block; 31. Lower limit block; 32. Upper pressure block; 33. V-shaped insert plate; 34. Lifting device one; 41. Lifting device two; 42. Cutting... 43. Machine cover; 44. Drive motor; 45. Cutting blade; 50. Protective cover; 100. Handle; 101. Support plate assembly; 102. Limiting plate assembly; 130. Cutting gap; 200. Anti-friction layer; 220. Anti-friction sleeve; 310. Insertion gap; 341. Hydraulic cylinder one; 342. Telescopic rod one; 343. Guide cylinder one; 344. Guide rod one; 345. Triangular fixing plate; 411. Hydraulic cylinder two; 412. Telescopic rod two; 413. Guide cylinder two; 414. Guide rod two; 415. Guide frame. Detailed Implementation

[0014] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0015] Combined with appendix Figures 1-5A steel bar cutting device for construction includes a support frame 1, wherein the support frame 1 is respectively provided with a steel bar guiding mechanism 2, a steel bar fixing mechanism 3, a steel bar cutting mechanism 4, and a metal scrap recycling box 5, and the steel bar fixing mechanism 3 is symmetrically arranged with respect to the steel bar cutting mechanism 4 in two sets; The support frame 1 includes a rectangular lower frame 10, and support rods 11 are provided at the four corners of the rectangular lower frame 10. A top plate 12 is fixedly connected to the top of the support rods 11. The support frame 1 is provided with a support bracket 13, which includes two symmetrical parts and a cutting gap 130 between the two parts of the support bracket 13. The rebar fixing mechanism 3 includes a lower limit block 31, the upper end face of which is V-shaped. The lower limit block 31 is fixedly installed on the support bracket 13. Several insertion gaps 310 are provided in the lower limit block 31. The rebar fixing mechanism 3 also includes an upper pressure block 32. Several V-shaped insert plates 33 are arranged at equal intervals at the bottom of the upper pressure block 32. The V-shaped insert plates 33 are adapted to the insertion gaps 310. A lifting device 34 is fixedly connected to the upper pressure block 32. The edges of the V-shaped insert plates 33 and the edges of the insertion gaps 310 are chamfered to facilitate quick and accurate insertion. The V-shaped insert plates 33 move downward and insert into the insertion gaps 310, which can effectively position and fix the rebar in the middle of the equipment. It can also accommodate a large number of rebars, whether it is a single rebar or a bundle of rebars. The rebars are fixed on both sides of the cutting gap 130 at the same time to ensure that the cutting process is stable and does not move.

[0016] The rebar cutting mechanism 4 includes a second lifting device 41, a cutting machine cover 42 fixedly connected to the bottom of the second lifting device 41, a drive motor 43 fixedly installed on one side of the cutting machine cover 42, a cutting blade 44 rotatably installed in the cutting machine cover 42, and a protective cover 45 installed at the bottom of the second lifting device 41. The protective cover 45 is an elastic mesh cover structure that can undergo elastic deformation when the second lifting device 41 is lowered. The lower edge of the protective cover 45 is always in close contact with the support bracket 13, effectively collecting the cutting debris and letting it fall into the metal scrap recycling box 5. A counterweight block with a weight equivalent to that of the drive motor 43 is installed on the side of the cutting machine cover 42 away from the drive motor 43.

[0017] The support frame 1 has two support plates 16 at the bottom, and each support plate 16 has a moving wheel 17 at both ends of its bottom. The support frame 1 has a handrail 18 on both sides. The moving wheel 17 includes a swivel wheel and a directional wheel. The moving wheel 17 facilitates the movement of the device. The moving wheel 17 is equipped with a braking device to ensure stable placement. The handrail 18 facilitates the control of the movement of the device.

[0018] The rebar guiding mechanism 2 includes a V-shaped receiving block 20, on which an anti-friction layer 200 is installed. The rebar guiding mechanism 2 also includes several columns 21, which are fixedly connected to a support bracket 13. Each column 21 has a rotating shaft 22 rotatably mounted on one side. Several connecting blocks 23 are installed on the support bracket 13. The lower end of the rotating shaft 22 is rotatably connected to the support bracket 13 via the connecting blocks 23. An anti-friction sleeve 220 is installed on the rotating shaft 22. The V-shaped receiving block 20 is used to receive single rebars or bundles of rebars to be cut. The anti-friction layer 200 on the surface of the V-shaped receiving block 20 and the anti-friction sleeve 220 on the surface of the rotating shaft 22 are both used to prevent rebar wear. The anti-friction layer 200 and the anti-friction sleeve 220 are consumable parts made of anti-friction rubber and need to be replaced promptly to maintain a good anti-wear effect on the rebar. The rebar guiding mechanism 2 can support and guide the movement of rebars within the equipment, allowing the rebars to move easily within the equipment.

[0019] The lifting device 34 includes a hydraulic cylinder 341, which is fixedly mounted on the top plate 12. The actuator of the hydraulic cylinder 341 passes through the top plate 12. A telescopic rod 342 is slidably mounted on the bottom of the hydraulic cylinder 341. The bottom of the telescopic rod 342 is fixedly connected to the upper pressure block 32. Several guide cylinders 343 are fixedly mounted on the bottom of the top plate 12. Guide rods 344 are slidably mounted in the guide cylinders 343. The lower end of the guide rods 344 is fixedly connected to the upper pressure block 32. Several triangular fixing plates 345 are fixedly connected to the outside of the guide cylinders 343. The top of the triangular fixing plates 345 is fixedly connected to the top plate 12. The lifting device 34 is used to drive the upper pressure block 32 to rise or fall, to fix or loosen the reinforcing bars. The guide cylinders 343 and guide rods 344 can ensure that the upper pressure block 32 only moves up and down and does not shift laterally.

[0020] The lifting device 2 41 includes a hydraulic cylinder 2 411, which is fixedly installed on the top plate 12. The actuator of the hydraulic cylinder 2 411 passes through the top plate 12. A telescopic rod 2 412 is slidably installed at the bottom of the hydraulic cylinder 2 411. The bottom of the telescopic rod 2 412 is fixedly connected to the cutting machine cover 42. Several guide cylinders 2 413 are fixedly installed at the bottom of the top plate 12. Guide rods 2 414 are slidably installed in the guide cylinders 2 413. The lower end of the guide rods 2 414 is fixedly connected to a guide frame 415. The guide frame 415 is fixedly connected to the cutting machine cover 42 through a connecting rod. The lifting device 2 41 is used to drive the cutting machine cover 42 and the cutting blade 44 to rise and fall to cut the steel bars. The guide cylinders 2 413 and the guide rods 2 414 are used to ensure that the cutting blade 44 only moves up and down and does not deviate laterally.

[0021] The metal scrap recycling bin 5 is fixedly equipped with handles 50 on both sides. The handles 50 facilitate the handling and movement of the metal scrap recycling bin 5. When in use, the metal scrap recycling bin 5 is filled with water.

[0022] A support plate assembly 100 and a limiting plate assembly 101 are fixedly connected to the lower rectangular frame 10. The metal scrap recycling box 5 is placed on the support plate assembly 100. The limiting plate assembly 101 and the support bracket 13 limit the horizontal position of the metal scrap recycling box 5.

[0023] This device is also equipped with a control device, which is a control device based on a single-chip microprocessor. The control device has several operation buttons for controlling the operation of this device.

[0024] When in use, this device is moved to a suitable position on the construction site by the handrail 18. Single steel bars or bundles of steel bars are placed onto the device by the transport equipment. During the placement process, the steel bar first contacts the V-shaped receiving block 20. Under the action of the V-shaped receiving block 20, the steel bar can be positioned in the correct entry position and pushed towards the center of the device. Under the action of the steel bar guiding mechanism 2, the steel bar can move relatively easily in the device, so that the steel bar cutting position is located in the middle of the cutting gap 130. The steel bar fixing mechanism 3 positions and fixes the steel bar. The steel bar cutting mechanism 4 cuts the single steel bar or bundle of steel bars. The metal debris generated during the cutting process can be effectively collected into the metal debris recycling box 5 under the protection of the protective cover 45, effectively improving the steel bar cutting efficiency and operational safety during the construction process.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel bar cutting device for construction, comprising a support frame (1), characterized in that: The support frame (1) is provided with a steel bar guiding mechanism (2), a steel bar fixing mechanism (3), a steel bar cutting mechanism (4), and a metal scrap recycling box (5). The steel bar fixing mechanism (3) is symmetrically arranged with respect to the steel bar cutting mechanism (4) in two sets. The support frame (1) includes a rectangular lower frame (10), and support rods (11) are provided at the four corners of the rectangular lower frame (10). A top plate (12) is fixedly connected to the top of the support rods (11). A support bracket (13) is provided in the support frame (1). The support bracket (13) includes two symmetrical parts, and there is a cutting gap (130) between the two parts of the support bracket (13). The rebar fixing mechanism (3) includes a lower limit block (31), the upper end face of the lower limit block (31) is V-shaped, the lower limit block (31) is fixedly installed on the support bracket (13), and a number of insertion gaps (310) are opened in the lower limit block (31). The rebar fixing mechanism (3) also includes an upper pressure block (32), and a number of V-shaped inserts (33) are arranged at equal intervals at the bottom of the upper pressure block (32). The V-shaped inserts (33) are adapted to the insertion gaps (310), and a lifting device (34) is fixedly connected to the upper pressure block (32). The cutting mechanism (4) includes a second lifting device (41), a cutting machine cover (42) is fixedly connected to the bottom of the second lifting device (41), a drive motor (43) is fixedly installed on one side of the cutting machine cover (42), a cutting blade (44) is rotatably installed in the cutting machine cover (42), and a protective cover (45) is installed at the bottom of the second lifting device (41).

2. The steel bar cutting device for construction as described in claim 1, characterized in that: The support frame (1) has two support plates (16) at the bottom. Each support plate (16) has a moving wheel (17) at both ends at the bottom. The support frame (1) has handrails (18) on both sides. The moving wheel (17) includes a universal wheel and a directional wheel.

3. The steel bar cutting device for construction as described in claim 1, characterized in that: The rebar guiding mechanism (2) includes a V-shaped receiving block (20), on which an anti-friction layer (200) is installed. The rebar guiding mechanism (2) also includes several columns (21), which are fixedly connected to the support bracket (13). Each column (21) has a rotating shaft (22) rotatably installed on one side. Several connecting blocks (23) are installed on the support bracket (13). The lower end of the rotating shaft (22) is rotatably connected to the support bracket (13) through the connecting block (23). An anti-friction sleeve (220) is installed on the rotating shaft (22).

4. A steel bar cutting device for construction as described in claim 1, characterized in that: The lifting device (34) includes a hydraulic cylinder (341), which is fixedly installed on the top plate (12). The actuator of the hydraulic cylinder (341) passes through the top plate (12). A telescopic rod (342) is slidably installed at the bottom of the hydraulic cylinder (341). An upper pressure block (32) is fixedly connected to the bottom of the telescopic rod (342). Several guide cylinders (343) are fixedly installed at the bottom of the top plate (12). A guide rod (344) is slidably installed in the guide cylinder (343). The lower end of the guide rod (344) is fixedly connected to the upper pressure block (32). Several triangular fixing plates (345) are fixedly connected to the outside of the guide cylinder (343). The top of the triangular fixing plates (345) is fixedly connected to the top plate (12).

5. A steel bar cutting device for construction as described in claim 1, characterized in that: The lifting device 2 (41) includes a hydraulic cylinder 2 (411), which is fixedly installed on the top plate (12). The hydraulic cylinder 2 (411) actuator passes through the top plate (12). A telescopic rod 2 (412) is slidably installed at the bottom of the hydraulic cylinder 2 (411). The bottom of the telescopic rod 2 (412) is fixedly connected to the cutting machine cover (42). Several guide cylinders 2 (413) are fixedly installed at the bottom of the top plate (12). A guide rod 2 (414) is slidably installed in the guide cylinder 2 (413). The lower end of the guide rod 2 (414) is fixedly connected to the guide frame (415). The guide frame (415) is fixedly connected to the cutting machine cover (42) through a connecting rod.

6. A steel bar cutting device for construction as described in claim 1, characterized in that: The metal scrap recycling bin (5) is fixedly equipped with handles (50) on both sides.

7. A steel bar cutting device for construction as described in claim 1, characterized in that: The rectangular lower frame (10) is fixedly connected to a support plate group (100) and a limiting plate group (101). The metal scrap recycling box (5) is placed on the support plate group (100). The limiting plate group (101) and the support bracket (13) limit the horizontal position of the metal scrap recycling box (5).

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