Numerical control steel bar shearing and bending continuous production device
The CNC rebar shearing and bending continuous production device with linkage design solves the problem of poor coordination between shearing and bending components in the existing technology, realizes efficient continuous feeding and automatic unloading of rebar, improves production efficiency and accuracy, and is suitable for high-standard building construction in confined spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SICHUAN UNIV
- Filing Date
- 2026-04-28
- Publication Date
- 2026-06-09
AI Technical Summary
Existing CNC rebar shearing and bending devices suffer from poor coordination between shearing and bending components, and lack efficient continuous feeding and automatic unloading mechanisms, resulting in low production efficiency, high equipment costs, high energy consumption, and large space occupation, making them difficult to adapt to the construction needs of high precision and confined spaces.
The CNC steel bar shearing and bending continuous production device with linkage design uses the same motor to drive the reciprocating threaded rod to drive the sleeve lifting and lowering, realizing the synchronous connection between the bending of the extrusion wheel and the shearing of the cutter head. It is equipped with a continuous feeding component and a descrambling component, including a guide plate, guide rail, clamping mechanism, pulley assembly and cleaning claw, to ensure continuous feeding and automatic unloading of steel bars.
It improves the dimensional accuracy and production continuity of steel bar processing, reduces equipment manufacturing costs and energy consumption, simplifies equipment structure, is suitable for operation in confined spaces, realizes full automation of steel bar processing, and avoids steel bar positioning deviation and material jamming problems.
Smart Images
Figure CN122164835A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of steel bar processing technology, and in particular to a CNC steel bar shearing and bending continuous production device. Background Technology
[0002] Currently, in the construction industry, steel bar processing has gradually moved towards CNC. CNC steel bar shearing and bending devices, with their advantages of fast processing speed and relatively convenient operation, are widely used in the steel bar processing of various construction projects. They effectively replace the traditional manual shearing and bending processing methods, and to a certain extent improve the standardization and efficiency of steel bar processing. Moreover, most devices are equipped with basic positioning structures to try to ensure the basic accuracy of steel bar processing. However, existing CNC rebar shearing and bending devices still have many problems and are difficult to adapt to the needs of large-scale, high-precision production. For example, the shearing and bending components are mostly designed with independent drives, requiring separate power mechanisms. This not only increases the manufacturing cost and energy consumption of the equipment, but also leads to poor connection between the two components, which can easily cause rebar positioning deviation and thus affect the accuracy of shearing and bending. At the same time, the independent drive structure makes the overall size of the equipment larger and occupies more construction space, which is not conducive to operation in confined spaces. Furthermore, it lacks an efficient continuous feeding and automatic unloading mechanism. During the processing, it is necessary to frequently perform rebar feeding, positioning, and unloading operations, which not only increases the labor intensity of the operation, but also makes it easy for human error to cause feeding deviation and untimely unloading, thus disrupting the continuity of production. To address the aforementioned issues, this application proposes a CNC steel bar shearing and bending continuous production device. Summary of the Invention
[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a CNC rebar shearing and bending continuous production device, which solves the problems of poor coordination between CNC rebar shearing and bending components, lack of efficient continuous feeding and automatic unloading mechanisms, and low production efficiency in existing technologies.
[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a CNC rebar shearing and bending continuous production device, comprising a support, a shearing assembly, and a bending assembly. The lower end of the support is fixedly connected to a base. The shearing assembly includes a motor, a reciprocating threaded rod, a sleeve, and a cutter head. The upper surface of the support is fixedly connected to the motor. The output end of the motor is fixedly connected to the reciprocating threaded rod. The lower end of the reciprocating threaded rod is threadedly connected to the sleeve. The lower end of the sleeve is fixedly connected to the cutter head. The bending assembly includes an L-shaped lifting plate, a pressing wheel, a vertical plate, and positioning rollers. The upper end of the L-shaped lifting plate is fixedly connected to the sleeve. The lower end of the L-shaped lifting plate is fixedly connected to the pressing wheel. The lower surface of the vertical plate is fixedly connected to the base. Two positioning rollers are staggered vertically, and the ends of both positioning rollers are fixedly connected to the vertical plate. Multiple linearly distributed positioning sleeves are fixedly connected to the upper surface of the base, and rebars are threaded through the interior of each positioning sleeve.
[0005] By adopting the above technical solution, during the descent of the sleeve, the extrusion wheel first contacts the steel bar located between the two positioning rollers to extrude and bend it, and then the cutter head cuts the steel bar. When the sleeve rises, it drives the continuous feeding component to drag the steel bar, so that the new steel bar re-enters the shearing and bending area. Then the sleeve descends again to bend and shear the steel bar.
[0006] Preferably, a slide rail is fixedly connected to the lower surface of the bracket, and guide plates are fixedly connected to both sides of the sleeve, with the end of the guide plate away from the sleeve being slidably connected to the slide rail.
[0007] By adopting the above technical solution, a slide rail and a guide plate are set. When the reciprocating threaded rod rotates inside the sleeve, the guide plate is limited by the slide rail, causing the sleeve to reciprocate vertically along the guide plate. The sleeve drives the cutter head at the lower end to cut the steel bar.
[0008] Preferably, the upright plate is provided with a material stripping assembly, which includes an L-shaped pusher plate and a No. 1 spring. One end of the L-shaped pusher plate passes through the interior of the upright plate and is located between two positioning rollers. One end of the No. 1 spring is fixedly connected to the L-shaped pusher plate, and the other end of the No. 1 spring is fixedly connected to the upright plate. An L-shaped abutment is provided above the L-shaped pusher plate. The upper end of the L-shaped abutment is fixedly connected to an L-shaped lifting plate, and the lower end of the L-shaped abutment is wedge-shaped.
[0009] By adopting the above technical solution, setting up a material unloading component and an L-shaped abutment, after bending is completed, the L-shaped lifting plate will continue to descend a certain distance with the sleeve until the lower end of the L-shaped abutment squeezes the L-shaped pusher plate. After being pressed, the L-shaped pusher plate slides into the vertical plate, and the end of the L-shaped pusher plate pushes the steel bar sandwiched between the two positioning rollers out and falls below, completing the unloading.
[0010] Preferably, the base is provided with a continuous feeding assembly, which includes a cable, a slide plate, a second spring, and a clamping mechanism. One end of the cable is fixedly connected to a sleeve, and the other end of the cable is fixedly connected to the slide plate. Guide rods are slidably connected to both ends of the slide plate. The second spring is sleeved on the outside of the guide rods. Both ends of the guide rods are fixedly connected to the base. One end of the second spring is fixedly connected to the slide plate, and the other end of the second spring is fixedly connected to the guide rods. The reinforcing bar is inserted inside the slide plate.
[0011] By adopting the above technical solution and setting up a continuous feeding component, when the sleeve rises, the slide plate pops out along the guide rod under the action of the second spring. The clamping mechanism on the second spring clamps the steel bar and feeds it into the shearing area. When the sleeve descends, the sleeve drives the cable to pull the slide plate to contract and squeeze the second spring, so that the second spring is in a compressed state. Due to the special design of the clamping mechanism, the steel bar will not retract when it retracts.
[0012] Preferably, the clamping mechanism is installed on the slide plate and the base respectively. The clamping mechanism includes a hinge block, a plug rod, a clamping rod and a torsion spring. The interior of the hinge block is hinged to the plug rod. The lower end of the plug rod is fixedly connected to the clamping rod. The torsion spring is sleeved on the outside of the plug rod. One end of the torsion spring abuts against the plug rod and the other end of the torsion spring abuts against the hinge block.
[0013] By adopting the above technical solution, a clamping mechanism is set up, and a torsion spring is used to clamp the steel bar at a certain angle with two clamping rods. When the clamping mechanism slides towards the shearing area with the slide plate, the two clamping rods are at an obtuse angle. Combined with the texture on the side of the steel bar, the steel bar can be fed into the shearing area. The faster the sliding acceleration of the second spring, the tighter the two clamping rods clamp, preventing slippage. When the slide plate retracts, the ends of the two clamping rods are at an acute angle to the steel bar. Although the ends of the clamping rods are in contact with the steel bar, they will slip. Therefore, the retraction process will not cause the steel bar to retract. This achieves an intermittent feeding effect where the sleeve rises, the steel bar is fed by the continuous feeding component, the sleeve descends, and the steel bar remains stationary.
[0014] Preferably, the end of the clamping rod is provided with an arc-shaped clamping groove, and a plurality of arc-shaped anti-slip strips are fixedly connected to the inner wall of the arc-shaped clamping groove.
[0015] By adopting the above technical solution, an arc-shaped anti-slip strip is set inside the clamping end of the clamping rod, thereby further preventing the feeding from slipping and ensuring the accuracy of cutting and bending.
[0016] Preferably, the base is provided with a pulley assembly, which includes a pulley frame and fixed pulleys. The lower end of the pulley frame is fixedly connected to the base, and both ends of the fixed pulleys are rotatably connected to the pulley frame. There are two fixed pulleys, which are distributed vertically. The cable is wound around the side surface of the fixed pulleys in sequence.
[0017] By adopting the above technical solution, a pulley assembly is set up in conjunction with a second spring to keep the cable taut at all times, making it less likely to loosen or tangle.
[0018] Preferably, the base has a material discharge port inside, and a material receiving trolley is provided below the material discharge port. Two symmetrically distributed guide rails are fixedly connected to the lower surface of the base, and wedge-shaped guide blocks are fixedly connected to the outer ends of the guide rails. Both sides of the material receiving trolley are in contact with the guide rails.
[0019] By adopting the above technical solution, a receiving trolley is set below the material discharge port. After the L-shaped pusher plate pushes out the bent and sheared steel bars, they fall into the receiving trolley through the material discharge port, which facilitates transportation. Furthermore, a guide rail and a wedge-shaped guide block are set up. When installing the receiving trolley, the receiving trolley enters the guide rail after being aligned with the wedge-shaped guide block in sequence, and is pushed into the base below the guide rail. The operation is simple and convenient.
[0020] Preferably, a cleaning claw is installed inside the discharge port, a threaded slider is fixedly connected to the outside of the cleaning claw, a lead screw is threadedly connected to the inside of the threaded slider, a transmission gear is sleeved and fixedly connected to the side surface of the lead screw, a lifting rack is meshed with the side surface of the transmission gear, the upper end of the lifting rack is fixedly connected to the sleeve, the lower surface of the threaded slider is slidably connected to the base, and a flexible wear-resistant rubber pad is provided on the inner side of the cleaning claw.
[0021] By adopting the above technical solution, a cleaning claw is installed inside the material discharge port. The flexible wear-resistant rubber pad on the inner side of the cleaning claw prevents scratching of the steel bars. When the sleeve descends to shear, the lifting rack drives the transmission gear, and the cleaning claw opens outward to avoid the steel bars and does not affect the shearing operation. When the sleeve ascends to return, the lifting rack drives the transmission gear in the opposite direction, and the cleaning claw pushes towards the middle. Together with the L-shaped pusher plate, it achieves double material removal and completely solves the problem of material jamming.
[0022] (III) Beneficial Effects In summary, this application includes at least one of the following beneficial technical effects: 1. A CNC rebar shearing and bending continuous production device, which links the shearing component and the bending component, and uses the same motor to drive the reciprocating threaded rod to drive the sleeve to rise and fall, realizes the synchronous connection between the extrusion wheel bending the rebar and the cutter head shearing the rebar, reduces equipment manufacturing costs and energy consumption, simplifies the equipment structure, reduces the size of the equipment, and is more suitable for the operation needs of confined construction sites. During the sleeve descent, the extrusion wheel completes the rebar bending first, and the cutter head then performs the shearing. The action is smoothly connected, effectively avoiding the rebar positioning deviation caused by asynchronous action, significantly improving the dimensional accuracy of rebar processing, and meeting the requirements of high-standard building construction for rebar processing accuracy.
[0023] 2. A CNC rebar shearing and bending continuous production device, through the design of a continuous feeding component and a stripping component, realizes full automation of rebar processing, improves production continuity and processing efficiency. The continuous feeding component utilizes the power of the sleeve lifting mechanism, combined with the special design of the clamping mechanism, to achieve intermittent and precise feeding of rebar, which not only prevents slippage during feeding but also avoids the rebar from retracting during retraction, ensuring feeding accuracy. The stripping component, through the cooperation of an L-shaped pusher and an L-shaped pusher plate, automatically pushes out the rebar after bending and shearing. Combined with the discharge port and the receiving trolley, it realizes automatic collection and transfer of finished products, further improving the coordination between feeding and unloading.
[0024] 3. A CNC rebar shearing and bending continuous production device, which uses a clamping mechanism to clamp the rebar at a certain angle using a torsion spring. When the clamping mechanism slides towards the shearing area with the slide plate, the two clamping rods form an obtuse angle, which, combined with the texture on the side of the rebar, can drive the rebar to be fed into the shearing area. The faster the sliding acceleration of the second spring, the tighter the two clamping rods clamp, preventing slippage. When the slide plate retracts, the ends of the two clamping rods form an acute angle with the rebar. Although the ends of the clamping rods are in contact with the rebar, they will slip, thus preventing the rebar from retracting during the retraction process. This achieves an intermittent feeding effect where the sleeve rises, the rebar is fed by the continuous feeding component, the sleeve descends, and the rebar remains stationary.
[0025] 4. A CNC steel bar shearing and bending continuous production device, wherein a cleaning claw is installed in the discharge port, and a flexible wear-resistant rubber pad is provided on the inner side of the cleaning claw to prevent scratching the steel bar. When the sleeve moves downward to shear, the lifting rack drives the transmission gear, and the cleaning claw opens outward to avoid the steel bar and does not affect the shearing operation. When the sleeve moves upward to return, the lifting rack drives the transmission gear in the opposite direction, and the cleaning claw pushes towards the middle. With the help of the L-shaped pusher plate, double unloading is achieved, which completely solves the problem of material jamming. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the material unloading assembly structure of the present invention; Figure 5 This is a schematic diagram of the clamping mechanism of the present invention; Figure 6 This is a schematic diagram of the material receiving trolley structure of the present invention; Figure 7 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 for Figure 3 Enlarged schematic diagram of the structure at point B.
[0027] Explanation of reference numerals in the attached figures: 1. Bracket; 2. Base; 3. Motor; 4. Reciprocating threaded rod; 5. Sleeve; 6. Cutting head; 7. L-shaped lifting plate; 8. Extrusion roller; 9. Vertical plate; 10. Positioning roller; 11. Positioning sleeve; 12. Reinforcing bar; 13. Slide rail; 14. Guide plate; 15. L-shaped pusher plate; 16. Spring No. 1; 17. L-shaped stop bar; 18. Cable; 19. Slide plate; 20. Spring No. 2; 21. Hinge block; 22. Insert rod; 23. Clamping rod; 24. Torsion spring; 25. Arc-shaped anti-slip strip; 26. Pulley frame; 27. Fixed pulley; 28. Drop port; 29. Receiving trolley; 30. Guide rail; 31. Wedge-shaped guide block; 32. Guide rod; 33. Cleaning claw; 34. Threaded slider; 35. Lead screw; 36. Transmission gear; 37. Lifting rack; 38. Flexible wear-resistant rubber pad. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail below.
[0030] Example: A CNC rebar shearing and bending continuous production device, referring to... Figures 1-3The system includes a support 1, a shearing assembly, and a bending assembly. The lower end of the support 1 is fixedly connected to a base 2. The shearing assembly includes a motor 3, a reciprocating threaded rod 4, a sleeve 5, and a cutter head 6. The upper surface of the support 1 is fixedly connected to the motor 3. The output end of the motor 3 is fixedly connected to the reciprocating threaded rod 4. The lower end of the reciprocating threaded rod 4 is threadedly connected to the sleeve 5. The lower end of the sleeve 5 is fixedly connected to the cutter head 6. The bending assembly includes an L-shaped lifting plate 7, a pressing roller 8, a vertical plate 9, and positioning rollers 10. The upper end of the L-shaped lifting plate 7 is fixedly connected to the sleeve 5, and the lower end of the L-shaped lifting plate 7 is fixedly connected to the pressing roller 8. The lower surface of the vertical plate 9 is fixedly connected to the base 2. There are two positioning rollers 10, staggered vertically, with the ends of both positioning rollers 10 fixedly connected to the vertical plate 9. Multiple linearly distributed positioning sleeves 11 are fixedly connected to the upper surface of the base 2, with the positioning sleeves 11 having internal perforations. With a reinforcing bar 12, during the descent of the sleeve 5, the extrusion roller 8 first contacts the reinforcing bar 12 located between the two positioning rollers 10 and extrudes and bends it. Then, the cutter head 6 cuts the reinforcing bar 12. When the sleeve 5 rises, it drives the continuous feeding assembly to drag the reinforcing bar 12, so that the new reinforcing bar 12 re-enters the shearing and bending areas. Then, the sleeve 5 descends again to bend and cut the reinforcing bar 12. The lower surface of the bracket 1 is fixedly connected to the slide rail 13. The two sides of the sleeve 5 are fixedly connected to the guide plate 14 respectively. The end of the guide plate 14 away from the sleeve 5 is slidably connected to the slide rail 13. By setting the slide rail 13 and the guide plate 14, when the reciprocating threaded rod 4 rotates inside the sleeve 5, the guide plate 14 is limited by the slide rail 13, so that the sleeve 5 moves vertically back and forth along the guide plate 14. The sleeve 5 drives the cutter head 6 at the lower end to cut the reinforcing bar 12.
[0031] Reference Figure 4 An unloading assembly is provided on the upright plate 9. The unloading assembly includes an L-shaped pusher plate 15 and a first spring 16. One end of the L-shaped pusher plate 15 passes through the interior of the upright plate 9 and is located between two positioning rollers 10. One end of the first spring 16 is fixedly connected to the L-shaped pusher plate 15, and the other end of the first spring 16 is fixedly connected to the upright plate 9. An L-shaped abutment rod 17 is provided above the L-shaped pusher plate 15. The upper end of the L-shaped abutment rod 17 is fixedly connected to the L-shaped lifting plate 7. The lower end of the L-shaped abutment rod 17 is wedge-shaped. After bending, the L-shaped lifting plate 7 will continue to descend a certain distance with the sleeve 5 until the lower end of the L-shaped abutment rod 17 presses the L-shaped pusher plate 15. After being pressed, the L-shaped pusher plate 15 slides into the interior of the upright plate 9. The end of the L-shaped pusher plate 15 pushes out the steel bar 12 sandwiched between the two positioning rollers 10 and drops it below, completing the unloading.
[0032] Reference Figure 1 , Figure 5 and Figure 7A continuous feeding assembly is provided on the base 2. The continuous feeding assembly includes a cable 18, a slide plate 19, a second spring 20, and a clamping mechanism. One end of the cable 18 is fixedly connected to the sleeve 5, and the other end of the cable 18 is fixedly connected to the slide plate 19. Guide rods 32 are slidably connected through both ends of the slide plate 19. The second spring 20 is sleeved on the outside of the guide rods 32. Both ends of the guide rods 32 are fixedly connected to the base 2. One end of the second spring 20 is fixedly connected to the slide plate 19, and the other end of the second spring 20 is fixedly connected to the guide rods 32. A steel bar 12 is inserted inside the slide plate 19. When the sleeve 5... During ascent, the slide plate 19, under the action of the second spring 20, pops out along the guide rod 32. The clamping mechanism on the second spring 20 clamps the rebar 12 and feeds it into the shearing area. When the sleeve 5 descends, the sleeve 5 drives the cable 18 to pull the slide plate 19 to contract and compress the second spring 20, putting the second spring 20 under pressure. Due to the special design of the clamping mechanism, it will not cause the rebar 12 to retract during retraction. The clamping mechanism is installed on the slide plate 19 and the base 2 respectively. The clamping mechanism includes a hinge block 21, a plug rod 22, a clamping rod 23, and a torsion spring 24. The interior of the hinge block 21 is hinged to the plug rod 22. The lower end of rod 22 is fixedly connected to clamping rod 23. Torsion spring 24 is sleeved on the outside of insert rod 22. One end of torsion spring 24 abuts against insert rod 22, and the other end of torsion spring 24 abuts against hinge block 21. The torsion spring 24 is used to make the two clamping rods 23 clamp the steel bar 12 at a certain angle. When the clamping mechanism slides towards the shearing area with slide plate 19, since the two clamping rods 23 are at an obtuse angle, combined with the texture on the side of steel bar 12, it can drive steel bar 12 to be fed into the shearing area. The faster the sliding acceleration of spring 20, the tighter the two clamping rods 23 clamp, preventing slippage. And when slide plate 19 retracts, due to... The ends of the two clamping rods 23 form an acute angle with the reinforcing bar 12. Although the ends of the clamping rods 23 are in contact with the reinforcing bar 12, they will slip. Therefore, the retraction process will not cause the reinforcing bar 12 to retract. This achieves an intermittent feeding effect where the sleeve 5 rises, the reinforcing bar 12 is fed by the continuous feeding component, the sleeve 5 descends, and the reinforcing bar 12 remains stationary. The ends of the clamping rods 23 are provided with arc-shaped clamping grooves. Multiple arc-shaped anti-slip strips 25 are fixedly connected to the inner wall of the arc-shaped clamping grooves. By setting arc-shaped anti-slip strips 25 inside the clamping end of the clamping rods 23, the feeding slippage is further prevented, ensuring the accuracy of cutting and bending.
[0033] Reference Figure 1 The base 2 is equipped with a pulley assembly, which includes a pulley frame 26 and a fixed pulley 27. The lower end of the pulley frame 26 is fixedly connected to the base 2, and both ends of the fixed pulley 27 are rotatably connected to the pulley frame 26. There are two fixed pulleys 27, which are distributed vertically. The cable 18 is wound around the side surface of the fixed pulley 27 in sequence. By setting the pulley assembly in conjunction with the second spring 20, the cable 18 is kept taut at all times and is not easy to loosen or tangle.
[0034] Reference Figure 1 andFigure 6 The base 2 has a material discharge port 28 inside, and a material receiving trolley 29 is set below the material discharge port 28. When the L-shaped pusher plate 15 pushes out the bent and sheared steel bar 12, it falls into the material receiving trolley 29 through the material discharge port 28, which facilitates transportation. Two symmetrically distributed guide rails 30 are fixedly connected to the lower surface of the base 2. The outer end of the guide rail 30 is fixedly connected to a wedge-shaped guide block 31. Both sides of the material receiving trolley 29 are in contact with the guide rail 30. When installing the material receiving trolley 29, the material receiving trolley 29 enters the guide rail 30 after being aligned with the wedge-shaped guide block 31 in sequence, and is pushed into the lower part of the base 2 along the guide rail 30. The operation is simple and convenient.
[0035] Reference Figure 8 A cleaning claw 33 is installed inside the discharge port 28. A threaded slider 34 is fixedly connected to the outside of the cleaning claw 33. A lead screw 35 is threadedly connected inside the threaded slider 34. A transmission gear 36 is sleeved and fixedly connected to the side surface of the lead screw 35. A lifting rack 37 is meshed with the side surface of the transmission gear 36. The upper end of the lifting rack 37 is fixedly connected to the sleeve 5. The lower surface of the threaded slider 34 is slidably connected to the base 2. A flexible wear-resistant rubber pad 38 is provided on the inner side of the cleaning claw 33. The cleaning claw 33 installed inside the discharge port and the flexible wear-resistant rubber pad 38 on the inner side of the cleaning claw 33 prevent scratching the steel bars. When the sleeve 5 descends to shear, the lifting rack 37 drives the transmission gear 36, and the cleaning claw 33 opens outward to avoid the steel bars and does not affect the shearing operation. When the sleeve 5 ascends to return, the lifting rack 37 drives the transmission gear 36 in the opposite direction, and the cleaning claw 33 pushes towards the middle. With the help of the L-shaped pusher plate 15, double material removal is achieved, completely solving the problem of material jamming.
[0036] The implementation principle of this invention is as follows: Before the device is started, the reinforcing bar 12 is first passed through the linearly distributed positioning sleeves 11 on the base 2, so that one end of the reinforcing bar 12 passes through the inside of the sliding plate 19 and between the two vertically staggered positioning rollers 10 on the upright plate 9 to complete the initial positioning. After the motor 3 is started, the output end of the motor 3 drives the reciprocating threaded rod 4 to rotate. Since the sleeve 5 is threadedly connected to the reciprocating threaded rod 4, and the guide plates 14 on both sides of the sleeve 5 are slidably connected to the slide rail 13 on the lower surface of the bracket 1, the guide plates 14 are limited by the slide rail 13, so that the sleeve 5 cannot rotate with the reciprocating threaded rod 4, but can only make a vertical downward movement along the slide rail 13. During the descent of the sleeve 5, its lower end The fixed cutter head 6 descends synchronously with the L-shaped lifting plate 7. The extrusion roller 8 at the lower end of the L-shaped lifting plate 7 first contacts the reinforcing bar 12 between the two positioning rollers 10. As the sleeve 5 continues to descend, the extrusion roller 8 extrudes and bends the reinforcing bar 12. After the bending action is completed, the cutter head 6 continues to descend and shears the bent reinforcing bar 12, completing one bending and shearing operation. After shearing, the L-shaped lifting plate 7 continues to descend a certain distance with the sleeve 5. The lower end of the L-shaped abutment 17 fixed at its upper end presses against the L-shaped pusher plate 15 on the vertical plate 9. After being pressed, the L-shaped pusher plate 15 slides inward into the vertical plate 9, and its end located between the two positioning rollers pushes the sheared and bent reinforcing bar 12. As the steel bar 12 is discharged, it falls through the discharge port 28 inside the base 2 into the receiving trolley 29 below. At the same time, the L-shaped pusher plate 15 compresses the first spring 16, causing it to be in a compressed state. Then, the motor 3 reverses, driving the reciprocating threaded rod 4 to rotate in the opposite direction. The sleeve 5 rises vertically along the slide rail 13, and the L-shaped abutment rod 17 separates from the L-shaped pusher plate 15. The L-shaped pusher plate 15 returns to its original position under the elastic force of the first spring 16. Simultaneously, as the sleeve 5 rises, the second spring 20 gradually returns to its original position and pushes the slide plate 19. The slide plate 19 and the clamping mechanism on the base 2 move synchronously. The insert rod 22 inside the hinge block 21, under the action of the torsion spring 24, drives the clamping rod 23 to clamp the steel bar 12 at an obtuse angle. The arc-shaped anti-slip strip 25 in the arc-shaped clamping groove at the end increases the friction and prevents slippage, thereby driving the steel bar 12 to be fed into the shearing area. When the sleeve 5 rises to the highest point and then descends again, the cable 18 pulls the slide plate 19 to slide in the opposite direction, squeezing the second spring 20 to compress it. The clamping rod 23 of the clamping mechanism makes acute-angle contact with the steel bar 12 and slips, preventing the steel bar 12 from retracting, thus achieving intermittent and precise feeding. The material collection trolley 29 is calibrated by the wedge-shaped guide block 31 at the outer end of the guide rail 30 on the lower surface of the base 2, and is pushed into the lower part of the base 2 along the guide rail 30 to facilitate the collection of the finished steel bar 12. The whole process is repeated, realizing the continuous and automated shearing and bending processing of the steel bar 12.
[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A CNC rebar shearing and bending continuous production device, comprising a support (1), a shearing assembly, and a bending assembly, characterized in that: The lower end of the bracket (1) is fixedly connected to the base (2). The shearing assembly includes a motor (3), a reciprocating threaded rod (4), a sleeve (5), and a cutter head (6). The upper surface of the bracket (1) is fixedly connected to the motor (3). The output end of the motor (3) is fixedly connected to the reciprocating threaded rod (4). The lower end of the reciprocating threaded rod (4) is threadedly connected to the sleeve (5). The lower end of the sleeve (5) is fixedly connected to the cutter head (6). The bending assembly includes an L-shaped lifting plate (7), a pressing wheel (8), a vertical plate (9), and a fixed... Positioning roller (10), the upper end of the L-shaped lifting plate (7) is fixedly connected to the sleeve (5), the lower end of the L-shaped lifting plate (7) is fixedly connected to the extrusion wheel (8), the lower surface of the upright plate (9) is fixedly connected to the base (2), the number of positioning rollers (10) is two and they are staggered vertically, the ends of the two positioning rollers (10) are fixedly connected to the upright plate (9), and the upper surface of the base (2) is fixedly connected with multiple linearly distributed positioning sleeves (11), and the inside of the positioning sleeves (11) is provided with steel bars (12).
2. The CNC steel bar shearing and bending continuous production device according to claim 1, characterized in that: The lower surface of the bracket (1) is fixedly connected to a slide rail (13), and the two sides of the sleeve (5) are respectively fixedly connected to guide plates (14). The end of the guide plate (14) away from the sleeve (5) is slidably connected to the slide rail (13).
3. The CNC steel bar shearing and bending continuous production device according to claim 1, characterized in that: The vertical plate (9) is provided with a material removal assembly, which includes an L-shaped pusher plate (15) and a first spring (16). One end of the L-shaped pusher plate (15) passes through the interior of the vertical plate (9) and is located between two positioning rollers (10). One end of the first spring (16) is fixedly connected to the L-shaped pusher plate (15), and the other end of the first spring (16) is fixedly connected to the vertical plate (9). An L-shaped abutment rod (17) is provided above the L-shaped pusher plate (15). The upper end of the L-shaped abutment rod (17) is fixedly connected to the L-shaped lifting plate (7), and the lower end of the L-shaped abutment rod (17) is wedge-shaped.
4. The CNC steel bar shearing and bending continuous production device according to claim 1, characterized in that: The base (2) is provided with a continuous feeding assembly, which includes a cable (18), a slide plate (19), a second spring (20) and a clamping mechanism. One end of the cable (18) is fixedly connected to the sleeve (5), and the other end of the cable (18) is fixedly connected to the slide plate (19). Guide rods (32) are inserted through and slidably connected to both ends of the slide plate (19). The second spring (20) is sleeved on the outside of the guide rod (32). Both ends of the guide rod (32) are fixedly connected to the base (2). One end of the second spring (20) is fixedly connected to the slide plate (19), and the other end of the second spring (20) is fixedly connected to the guide rod (32). The steel bar (12) is inserted inside the slide plate (19).
5. A CNC steel bar shearing and bending continuous production device according to claim 4, characterized in that: The clamping mechanism is installed on the slide plate (19) and the base (2) respectively. The clamping mechanism includes a hinge block (21), a plug rod (22), a clamping rod (23) and a torsion spring (24). The interior of the hinge block (21) is hinged to the plug rod (22). The lower end of the plug rod (22) is fixedly connected to the clamping rod (23). The torsion spring (24) is sleeved on the outside of the plug rod (22). One end of the torsion spring (24) abuts against the plug rod (22), and the other end of the torsion spring (24) abuts against the hinge block (21).
6. The CNC steel bar shearing and bending continuous production device according to claim 5, characterized in that: The end of the clamping rod (23) is provided with an arc-shaped clamping groove, and the inner wall of the arc-shaped clamping groove is fixedly connected with a plurality of arc-shaped anti-slip strips (25).
7. A CNC steel bar shearing and bending continuous production device according to claim 4, characterized in that: The base (2) is provided with a pulley assembly, which includes a pulley frame (26) and a fixed pulley (27). The lower end of the pulley frame (26) is fixedly connected to the base (2), and both ends of the fixed pulley (27) are rotatably connected to the pulley frame (26). There are two fixed pulleys (27) distributed vertically, and the cable (18) is wound around the side surface of the fixed pulley (27) in sequence.
8. The CNC steel bar shearing and bending continuous production device according to claim 1, characterized in that: The base (2) has a material discharge port (28) inside, and a material receiving trolley (29) is provided below the material discharge port (28). Two symmetrically distributed guide rails (30) are fixedly connected to the lower surface of the base (2). A wedge-shaped guide block (31) is fixedly connected to the outer end of the guide rail (30). Both sides of the material receiving trolley (29) are in contact with the guide rail (30).
9. A CNC steel bar shearing and bending continuous production device according to claim 8, characterized in that: A cleaning claw (33) is installed inside the discharge port (28). A threaded slider (34) is fixedly connected to the outside of the cleaning claw (33). A screw rod (35) is threadedly connected inside the threaded slider (34). A transmission gear (36) is sleeved and fixedly connected to the side surface of the screw rod (35). A lifting rack (37) is meshed with the side surface of the transmission gear (36). The upper end of the lifting rack (37) is fixedly connected to the sleeve (5). The lower surface of the threaded slider (34) is slidably connected to the base (2). A flexible wear-resistant rubber pad (38) is provided on the inner side of the cleaning claw (33).