Reinforcing bar cutting machine with dustproof structure

Abstract

The utility model relates to reinforcing steel bar cutting technical field especially is a reinforcing steel bar cutting machine with dustproof structure, including frame, slide, clamping plate A, steering limiting component and negative pressure dust collecting mechanism, is provided with the guide groove on the frame, a plurality of support rollers are set up in the guide groove along its length direction interval, the slide is set up on the frame, is provided with the lifting drive component A of drive slide to rise or fall on the frame, and is provided with cutting mechanism on the slide, clamping plate A sets up in the bottom of slide, the bottom of slide sets up the linear module of drive clamping plate A sliding, the pressure roller is rotatably provided on clamping plate A, steering limiting component sets up on clamping plate A, and steering limiting component restricts the one -way rotation of pressure roller, negative pressure dust collecting mechanism sets up on the frame, and negative pressure dust collecting mechanism collects the chippings generated in the cutting process under the working condition and intermittently removes. The utility model through ingenious mechanical structure has realized the accurate positioning of reinforcing steel bar, automatic feed, stable cutting and efficient dust removal.

Description

Technical Field

[0001] This utility model relates to the field of rebar cutting technology, and in particular to a rebar cutter with a dustproof structure. Background Technology

[0002] In the field of construction engineering, rebar cutting is a fundamental yet arduous task. Traditional manual methods are not only labor-intensive and inefficient, but also lack precision, directly impacting construction quality. Currently, some rebar cutting equipment on the market still has significant shortcomings in terms of automation and environmental protection.

[0003] First, most equipment relies on manual pushing or simple friction transmission in the rebar feeding stage, resulting in inaccurate feeding and rebar slippage and rotation, leading to significant length errors and material waste. Second, the cutting process generates a large amount of high-temperature metal shavings and dust. These pollutants quickly permeate the working environment, severely deteriorating the working conditions of operators and harming their respiratory health. They also contaminate internal transmission components, accelerating equipment wear and shortening its lifespan. Although some equipment is equipped with dust removal devices, they generally suffer from incomplete collection, easy clogging of the exhaust system, or the need for frequent manual cleaning, making it difficult to maintain a stable and long-term dust removal effect. Therefore, developing a rebar cutting machine that can achieve precise automatic feeding while possessing high efficiency and self-cleaning dust removal functions is of great practical significance. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a steel bar cutting machine with a dustproof structure.

[0005] The technical solution of this utility model is: a steel bar cutting machine with a dustproof structure, including a frame, a guide groove on the frame, and a number of support rollers spaced apart along the length of the guide groove; The slide is mounted on the frame, and the frame is equipped with a lifting drive assembly A that drives the slide to rise or fall along the height direction of the guide groove. A cutting mechanism is also mounted on the slide. Card plate A is set at the bottom of the carriage. A linear module is set at the bottom of the carriage to drive card plate A to slide along the length of the carriage. A pressure roller adapted to the support roller is rotatably set on card plate A. A steering limit assembly is installed on the chuck A. The steering limit assembly restricts the rotation of the pressure roller when the chuck A moves toward the cutting mechanism. And a negative pressure dust collection mechanism, which is installed on the frame, collects and intermittently removes the debris generated during the cutting process when it is in operation.

[0006] Preferably, the width of both the carriage and the plate A is the same as the width of the guide groove.

[0007] Preferably, the cutting mechanism includes a cutting machine and a lifting drive assembly B. A through hole is provided on the carriage, the body of the cutting machine is located in the through hole and slides in contact with its inner wall, and the lifting drive assembly B is provided on the carriage and drives the cutting machine to rise or fall.

[0008] Preferably, a clamping plate B is provided on both sides of the through hole at the bottom of the carriage. The clamping plate B is parallel to the clamping plate A, and a pressure roller is also rotatably installed on the clamping plate B.

[0009] Preferably, the steering limiting assembly includes a ratchet, a spring rod, and a ratchet tooth. A circular groove coaxial with the roller shaft of the pressure roller is provided on the clamping plate A, and a side groove communicating with the circular groove is provided on the clamping plate A. The ratchet is located in the circular groove and coaxially connected to the roller shaft of the pressure roller. The spring rod and the ratchet tooth are both located in the side groove. The two ends of the spring rod are respectively connected to the inner wall of the side groove and the ratchet tooth. The ratchet tooth engages with the ratchet in one direction.

[0010] Preferably, the negative pressure dust collection mechanism includes a feed pipe, a fan, a filter element, a cylinder, and a servo motor. A through hole communicating with a guide groove is provided on the frame directly below the cutting mechanism. The feed pipe covers the outside of the through hole and has a discharge hole, an exhaust hole, and a circular groove communicating with the discharge hole. The fan is mounted on the feed pipe, with its input end communicating with the output end of the exhaust hole, and its output end communicating with the outside. The filter element is placed inside the exhaust hole and close to the input end of the fan. The cylinder is placed inside the circular groove and slidably connected to its inner wall. A receiving groove adapted to the discharge hole is provided on the arc surface of the cylinder. The servo motor body is mounted on the feed pipe, and the output end of the servo motor is connected to the cylinder.

[0011] Preferably, two guide plates are provided at the bottom of the guide groove to guide the debris into the through hole.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: The automated clamping and conveying of rebars is achieved through the cooperation of the carriage, clamping plate, and linear module. A specially designed steering limit assembly (ratchet, ratchet, and spring rod) ensures that the pressure roller locks during feeding, reliably pushing the rebar using sliding friction; while during the return stroke, the pressure roller can rotate freely and quickly reset, thus achieving precise length feeding and effectively preventing rebar slippage or backlash, greatly improving cutting accuracy and efficiency. The innovative negative pressure dust collection mechanism is ingeniously designed. When the fan is working, it creates a stable negative pressure in the guide pipe, directly drawing and collecting most of the debris and dust generated during cutting from the source (directly below the cutting point). The filter element effectively filters dust-laden air, protecting the fan and ensuring clean emissions. Furthermore, a servo motor drives the cylinder to rotate, causing the receiving trough to circulate and empty debris, achieving automated collection and discharge cycles. This solves the pain points of traditional methods, such as easy clogging and the need for frequent manual cleaning, ensuring continuous and efficient dust removal. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the connection structure between the card plate A and the pressure roller; Figure 3 This is a schematic diagram of the connecting parts of the feed tube.

[0014] Reference numerals: 1. Frame; 101. Guide groove; 2. Support roller; 3. Guide plate; 4. Carriage; 5. Servo electric cylinder A; 6. Cutting machine; 7. Servo electric cylinder B; 8. Clamping plate A; 9. Linear module; 10. Pressure roller; 11. Ratchet; 12. Spring rod; 13. Ratchet tooth; 14. Clamping plate B; 15. Guide tube; 151. Drop hole; 152. Exhaust hole; 16. Fan; 17. Filter element; 18. Cylinder; 181. Receiving groove; 19. Servo motor. Detailed Implementation

[0015] Example 1, as Figures 1-3As shown, this utility model proposes a rebar cutting machine with a dustproof structure, including a frame 1, a slide 4, a clamping plate A8, a steering and limiting assembly, and a negative pressure dust collection mechanism. A guide groove 101 is provided on the frame 1, and several support rollers 2 are spaced apart along its length within the guide groove 101. The slide 4 is mounted on the frame 1, and a guide rail is provided on the frame 1 along its height direction. The slide 4 is slidably connected to the guide rail. A lifting drive assembly A is provided on the frame 1 to drive the slide 4 to rise or fall along the height direction of the guide groove 101. The lifting drive assembly A includes, but is not limited to, a servo electric cylinder A5. The body of the servo electric cylinder A5 is mounted on the frame 1, and the output end of the servo electric cylinder A5 is connected to the slide 4. A cutting mechanism is provided on the slide 4, which includes a cutting machine 6 and a lifting drive assembly B. The slide 4 has a through hole, and the body of the cutting machine 6 is located within the through hole and slides in contact with its inner wall. The lifting drive assembly B includes, but is not limited to, a servo electric cylinder B7 and a bracket. The bracket is mounted on the slide 4, and the body of the cutting machine 6 is slidably connected to the bracket. The body of the servo electric cylinder B7 is mounted on the bracket, and its output end is connected to the body of the cutting machine 6. A clamping plate A8 is located at the bottom of the slide 4. A linear module 9 is provided at the bottom of the slide 4 to drive the clamping plate A8 to slide along the length of the slide 4. A pressure roller 10 adapted to the support roller 2 is rotatably mounted on the clamping plate A8. The width of both the slide 4 and the clamping plate A8 is the same as the width of the guide groove 101. A steering limit assembly is mounted on the clamping plate A8. The assembly includes a ratchet 11, a spring rod 12, and a ratchet tooth 13. The clamping plate A8 has a circular groove coaxial with the roller shaft of the pressure roller 10, and a side groove communicating with the circular groove. The ratchet 11 is located within the circular groove and coaxially connected to the roller shaft of the pressure roller 10. The spring rod 12 and the ratchet tooth 13 are both located within the side groove. The two ends of the spring rod 12 are connected to the inner wall of the side groove and the ratchet tooth 13, respectively. The ratchet tooth 13 engages with the ratchet 11 in one direction. The steering limit assembly restricts the rotation of the pressure roller 10 when the clamping plate A8 moves towards the cutting mechanism. A negative pressure dust collection mechanism is mounted on the frame 1. This mechanism includes a guide pipe 15, a fan 16, a filter element 17, a cylinder 18, and a servo motor 19. A through hole communicating with a guide groove 101 is provided directly below the cutting mechanism on the frame 1. Two guide plates 3 are provided at the bottom of the guide groove 101 to guide debris into the through hole. The guide pipe 15 covers the outside of the through hole and has a discharge hole 151, an exhaust hole 152 communicating with the discharge hole 151, and a circular groove. The fan 16 is mounted on the guide pipe 15, with its input end communicating with the output end of the exhaust hole 152, and its output end communicating with the outside. The filter element 17 is located inside the exhaust hole 152 and close to the input end of the fan 16. The cylinder 18 is disposed in the circular groove and slidably connected to its inner wall. A receiving groove 181 adapted to the discharge hole 151 is provided on the arc surface of the cylinder 18.The servo motor 19 is mounted on the feed tube 15. The output end of the servo motor 19 is connected to the cylinder 18. The negative pressure dust collection mechanism collects and intermittently removes the debris generated during the cutting process when it is in operation.

[0016] It should be noted that the ratchet 11 on the card plate A8 blocks when the pressure roller 10 rotates clockwise, so that the pressure roller 10 maintains normal counterclockwise rotation during the process of sliding back on the upper end surface of the steel bar. When the pressure roller 10 moves towards the cutting mechanism on the upper end surface of the steel bar, it blocks, thereby completing the purpose of pushing the steel bar to move. At the same time, both the support roller 2 and the pressure roller 10 are provided with an annular groove with a V-shaped cross section at the center of their arc surfaces.

[0017] In this embodiment, the steel bar to be cut is placed horizontally in the guide groove 101 of the frame 1, supported by multiple support rollers 2. To ensure that the steel bar does not roll or shift during processing, the center of the arc surface of the support rollers 2 and the subsequent pressing rollers 10 are provided with V-shaped annular grooves. This structure can effectively hold the steel bar and enhance the positioning effect. After the equipment is started, the servo electric cylinder A5 drives the slide 4 to descend as a whole, so that the pressing rollers 10 fixed on the clamping plate A8 can be steadily pressed against the upper surface of the steel bar through their V-shaped grooves. After the pressing action is completed, the linear module 9 starts to work, driving the clamping plate A8 and the pressing rollers 10 to move together along the length direction of the slide 4 (i.e., the axial direction of the steel bar). At this time, the key steering and limiting components begin to play a role: the pressing rollers 10 tend to rotate under the action of friction on the surface of the steel bar, and drive the ratchet 11 connected to it coaxially to rotate. Because the ratchet 13 engages with the ratchet 11 in one direction under the preload of the spring rod 12, when the clamping plate A8 pushes the rebar towards the cutting mechanism (assuming it is the forward direction), the rotation of the ratchet 11 is immediately locked, preventing the pressure roller 10 from rotating. Thus, as a single sliding module, it reliably pushes the rebar forward precisely on the support roller 2 using friction. When the front end of the rebar is delivered to the preset cutting length, the linear module 9 stops operating. Subsequently, the servo electric cylinder B7 in the lifting drive assembly B actuates, driving the cutting machine 6 to descend vertically and quickly cut the stationary rebar. After cutting, the cutting machine 6 is rapidly lifted by the servo electric cylinder B7 and returns to the standby position. After a single cut, the linear module 9 reverses direction, driving the clamping plate A8 and the pressure roller 10 back to the starting position. During the retraction process, the pressure roller 10 is subjected to reverse friction, and its counterclockwise rotation tendency allows the ratchet 13 to lift, allowing the ratchet 11 to idle, thus enabling the pressure roller 10 to roll freely back on the surface of the rebar without pulling the cut rebar backward. Afterward, the slide 4 can be raised as a whole, allowing the pressure roller 10 to completely detach from the rebar, preparing for the next cycle. Throughout the cutting process, the negative pressure dust collection mechanism operates synchronously. The fan 16 continuously operates, creating a negative pressure zone within the guide pipe 15. A large amount of high-temperature debris and dust generated during cutting is sucked in through the through-hole directly below the cutting point under the combined action of gravity and negative pressure suction. The design of the guide plate 3 ensures that the debris is concentrated and guided. The debris entering the guide pipe 15 first falls into the receiving groove 181 on the arc surface of the cylinder 18. The exhaust port 152 with filter element 17 effectively filters the dust-laden air, preventing dust from entering the fan 16 and being discharged into the atmosphere. To maintain continuous collection capability, the servo motor 19 intermittently drives the cylinder 18 to rotate at a certain angle. When the receiving trough 181, which is full of debris, rotates to the bottom, the debris automatically falls into the designated collection container by gravity, thus realizing the automation of collection and discharge.

[0018] Example 2, as Figure 1 and Figure 2As shown, the present invention proposes a steel bar cutting machine with a dustproof structure. Compared with the first embodiment, the bottom of the slide 4 is provided with a clamping plate B14 on both sides of the through hole. The clamping plate B14 is parallel to the clamping plate A8. The pressure roller 10 is also rotatably arranged on the clamping plate B14. The clamping plate B14 is also provided with a steering limit component for limiting the rotation direction of the pressure roller 10. The ratchet 11 in the steering limit component is blocked when the pressure roller 10 rotates clockwise.

[0019] In this embodiment, when the pressure roller 10 on the clamping plate A8 pushes the reinforcing bar, the ratchet 11 on the clamping plate B14 rotates counterclockwise, causing the pressure roller 10 to rotate counterclockwise adaptively, and the reinforcing bar can move stably to the right. When the pressure roller 10 on the clamping plate A8 slides back along the surface of the reinforcing bar, the pressure roller 10 on the clamping plate B14 will passively rotate clockwise. At this time, the ratchet 11 on the clamping plate B14 will be blocked, thereby blocking the pressure roller 10 on the clamping plate B14, thus ensuring that the reinforcing bar will not slide back, and further improving the conveying stability of the reinforcing bar.

[0020] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A steel bar cutting machine with a dustproof structure, characterized in that, include: A frame (1) is provided on the frame (1), and a guide groove (101) is provided in the guide groove (101) at intervals along its length. The slide (4) is mounted on the frame (1). The frame (1) is equipped with a lifting drive assembly A that drives the slide (4) to rise or fall along the height direction of the guide groove (101). The slide (4) is also equipped with a cutting mechanism. Card plate A (8) is set at the bottom of slide (4). A linear module (9) is set at the bottom of slide (4) to drive card plate A (8) to slide along the length direction of slide (4). A pressure roller (10) adapted to support roller (2) is rotatably set on card plate A (8). A steering limit assembly is provided on the chuck A (8). The steering limit assembly restricts the rotation of the pressure roller (10) when the chuck A (8) moves toward the cutting mechanism. And a negative pressure dust collection mechanism, which is installed on the frame (1). The negative pressure dust collection mechanism collects and intermittently removes the debris generated during the cutting process when it is in operation.

2. A steel bar cutting machine with a dustproof structure according to claim 1, characterized in that, The widths of the carriage (4) and the plate A (8) are the same as the width of the guide groove (101).

3. A steel bar cutting machine with a dustproof structure according to claim 1, characterized in that, The cutting mechanism includes a cutting machine (6) and a lifting drive assembly B. A through hole is provided on the carriage (4). The body of the cutting machine (6) is located in the through hole and slides in contact with its inner wall. The lifting drive assembly B is provided on the carriage (4) and drives the cutting machine (6) to rise or fall.

4. A steel bar cutting machine with a dustproof structure according to claim 3, characterized in that, A clamping plate B (14) is set on both sides of the through hole at the bottom of the carriage (4). The clamping plate B (14) is parallel to the clamping plate A (8). A pressure roller (10) is also rotatably set on the clamping plate B (14).

5. A steel bar cutting machine with a dustproof structure according to claim 1, characterized in that, The steering limit assembly includes a ratchet (11), a spring rod (12), and a ratchet (13). A circular groove coaxial with the roller shaft of the pressure roller (10) is provided on the clamping plate A (8), and a side groove communicating with the circular groove is provided on the clamping plate A (8). The ratchet (11) is located in the circular groove and coaxially connected with the roller shaft of the pressure roller (10). The spring rod (12) and the ratchet (13) are both located in the side groove. The two ends of the spring rod (12) are connected to the inner wall of the side groove and the ratchet (13) respectively. The ratchet (13) meshes with the ratchet (11) in one direction.

6. A steel bar cutting machine with a dustproof structure according to claim 1, characterized in that, The negative pressure dust collection mechanism includes a guide pipe (15), a fan (16), a filter element (17), a cylinder (18), and a servo motor (19). A through hole communicating with a guide groove (101) is provided on the frame (1) directly below the cutting mechanism. The guide pipe (15) is wrapped around the outside of the through hole. A discharge hole (151) and an exhaust hole (152) communicating with the discharge hole (151) and a circular groove are provided on the guide pipe (15). The fan (16) is mounted on the guide pipe (15). The input of the fan (16)... The output end of the fan (16) is connected to the output end of the exhaust hole (152), and the output end of the fan (16) is connected to the outside. The filter element (17) is set inside the exhaust hole (152) and close to the input end of the fan (16). The cylinder (18) is set in the circular groove and is slidably connected to its inner wall. The receiving groove (181) that matches the discharge hole (151) is set on the arc surface of the cylinder (18). The body of the servo motor (19) is set on the guide pipe (15), and the output end of the servo motor (19) is connected to the cylinder (18).

7. A steel bar cutting machine with a dustproof structure according to claim 6, characterized in that, Two guide plates (3) are provided at the bottom of the guide groove (101) to guide the debris into the through hole through the guide plates (3).

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