Feeding device of steel bar bender

Abstract

The utility model relates to the technical field of steel bar bender feeding, in particular to a feeding device of a steel bar bender. The feeding device of the steel bar bending machine comprises a supporting plate, a sliding hole, a containing cavity, a driving assembly, a driven bevel gear and an elastic assembly, a plurality of chain wheels are rotationally connected to the interior of the bottom end of the supporting plate, the multiple chain wheels are sleeved with a chain, and first limiting rods are fixedly connected to the front sides of the chain wheels; a driving wheel is slidably connected to the exterior of the first limiting rod, a first nut is in threaded connection to the exterior of the front side of the driving wheel, a motor is fixedly connected to the interior of the rear side of the bottom end of the supporting plate, a sliding hole is formed in the front side of the supporting plate, and a sliding long block is slidably connected to the interior of the sliding hole. The universality of the device is improved, the overall production efficiency is improved, the driving wheel and the driven wheel rotate reversely, steel bars are continuously clamped and conveyed, the compensation function of the elastic assembly is matched, conveying faults are greatly reduced, and feeding continuity is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of feeding technology for rebar bending machines, and in particular to a feeding device for a rebar bending machine. Background Technology

[0002] A rebar bending machine is a processing device used to bend rebar into specific shapes according to construction requirements. It is widely used in construction, bridge and other engineering fields. Traditional manual feeding has problems such as low efficiency, high labor intensity and large positioning errors. However, the feeding device of the rebar bending machine can automatically transport the rebar and accurately position it to the processing station. It works in conjunction with the bending machine to achieve continuous production, which greatly improves processing efficiency and accuracy, reduces labor costs and safety risks, and has therefore become an indispensable auxiliary equipment in modern rebar processing.

[0003] Most rebar bending machines typically place the rebar between two conveyor wheels, then start the motor to rotate the conveyor wheels. The rebar is conveyed by the friction between the wheel surface and the rebar surface, which generates forward traction. However, this method can only accommodate a single specification of rebar and makes it difficult to adjust the distance between the two conveyor wheels. This limits the flexibility and adaptability of the feeding device, thereby reducing overall production efficiency.

[0004] Therefore, it is necessary to provide a new feeding device for a rebar bending machine to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a feeding device for a rebar bending machine.

[0006] The present invention provides a feeding device for a rebar bending machine, comprising: a support plate, a sliding hole, a receiving chamber, a drive assembly, a driven bevel gear, and an elastic assembly. Multiple sprockets are rotatably connected to the bottom end of the support plate, and chains are sleeved on the outside of the multiple sprockets. A first limiting rod is fixedly connected to the front side of each sprocket, and a drive wheel is slidably connected to the outside of the first limiting rod. A first nut is threadedly connected to the front side of the drive wheel. A motor is fixedly connected to the rear end of the bottom end of the support plate. A sliding hole is formed inside the front side of the support plate, and a sliding block is slidably connected inside the sliding hole. A second limiting rod is rotatably connected to the front side of the sliding block, and a driven wheel is slidably connected to the outside of the second limiting rod. A second nut is threadedly connected to the front side of the second limiting rod. A receiving chamber is formed inside the top end of the support plate, and a drive bevel gear is rotatably connected to the front side of the inner wall of the receiving chamber. A drive assembly is installed on the front side of the drive bevel gear. A driven bevel gear is rotatably connected to the bottom end of the inner wall of the receiving chamber, and a threaded rod is threadedly connected to the inside of the driven bevel gear. An elastic assembly is installed at the bottom end of the threaded rod.

[0007] Preferably, the drive assembly includes a rotating disk, the rear side of which is fixedly connected to the front side of the drive bevel gear, a handle is fixedly connected to the front side of the rotating disk off-center, and the rear side of the rotating disk is rotatably connected to the top front side of the support plate.

[0008] Preferably, the elastic component includes a receiving long block, the top end of the receiving long block is rotatably connected to the bottom end of the threaded rod, multiple strong springs are provided inside the receiving long block, a limit plate is slidably connected inside the receiving long block, and multiple sliding rods are fixedly connected to the bottom end of the limit plate.

[0009] Preferably, the side of the sprocket furthest from the first limiting rod is fixedly connected to the drive end of the motor, and the outer side of the first limiting rod near the sprocket is rotatably connected to the inner wall of the front bottom end of the support plate.

[0010] Preferably, the rear side of the first nut contacts the front side of the driving wheel, and the rear side of the second nut contacts the front side of the driven wheel.

[0011] Preferably, the driving bevel gear and the driven bevel gear are meshing.

[0012] Preferably, the bottom ends of the plurality of sliding rods are fixedly connected to the top end of the sliding block, and the inner wall of the bottom end of the receiving block is slidably connected to the outside of the sliding rods.

[0013] Preferably, the top end of the strong spring is fixedly connected to the top end of the inner wall of the long block, the bottom end of the strong spring is fixedly connected to the top end of the limiting plate, and the outer side of the long block is slidably connected to the inner wall of the sliding hole.

[0014] Compared with related technologies, the feeding device for a rebar bending machine provided by this utility model has the following beneficial effects:

[0015] Breakthrough in adaptability: Traditional devices have difficulty adjusting the spacing between the conveyor wheels, and are only suitable for single-specification steel bars. This utility model uses a handle, rotating disc, bevel gear, threaded rod, and elastic component to adjust the spacing between the driving and driven wheels. The powerful spring can automatically compensate for minor diameter deviations of the steel bars, improving the device's versatility and overall production efficiency. Furthermore, the driving and driven wheels rotate in opposite directions to continuously clamp and convey the steel bars. Combined with the compensation function of the elastic component, this significantly reduces conveying failures and ensures continuous feeding.

[0016] Improved ease of maintenance: Replacing the conveyor wheels in traditional devices requires disassembling a large number of structures, which is time-consuming and labor-intensive. In this invention, the drive wheel and driven wheel are quickly locked together by nuts and limit rods. Disassembly and replacement can be completed by simply turning the nuts, reducing the difficulty of on-site operation and maintenance. Attached Figure Description

[0017] Figure 1 A schematic diagram of the feeding device for a rebar bending machine provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the structure of the support plate.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0020] Figure 4 for Figure 1 The diagram shows the structure of the second limiting rod.

[0021] Figure 5 for Figure 2 Enlarged view of point B in the image.

[0022] The following are the labels in the diagram: 1. Support plate; 2. Sprocket; 3. Chain; 4. First limit rod; 5. Drive wheel; 6. First nut; 7. Motor; 8. Sliding hole; 9. Sliding block; 10. Second limit rod; 11. Driven wheel; 12. Second nut; 13. Receiving chamber; 14. Driven bevel gear; 15. Rotating disk; 16. Handle; 17. Driven bevel gear; 18. Threaded rod; 19. Receiving block; 20. Strong spring; 21. Limit plate; 22. Sliding rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 5A feeding device for a rebar bending machine includes: a support plate 1, with multiple sprockets 2 rotatably connected to the bottom end of the support plate 1. The multiple sprockets 2 are evenly distributed inside the bottom end of the support plate 1. The sprockets 2 are used to transmit power, providing support and a driving basis for the transmission of a chain 3. A chain 3 is sleeved on the outside of the multiple sprockets 2, tightly wrapping around the outside of the multiple sprockets 2 to realize the transmission and linkage of power between the multiple sprockets 2. A first limiting rod 4 is fixedly connected to the front side of the sprocket 2. The first limiting rod 4 provides positioning and restriction for the sprocket 2 in the axial direction to prevent unnecessary displacement of the sprocket 2. The outer side of the first limiting rod 4 near the sprocket 2 is rotatably connected to the inner wall of the front bottom end of the support plate 1 to ensure that the first limiting rod 4 can move with the sprocket 2. The sprocket 2 rotates synchronously. The drive wheel 5 is slidably connected to the outside of the first limiting rod 4. The position of the drive wheel 5 can be adjusted on the first limiting rod 4 as needed to meet different transmission requirements. The front side of the drive wheel 5 is threaded with a first nut 6. The first nut 6 is used to fasten the drive wheel 5 to the first limiting rod 4 to prevent the drive wheel 5 from sliding during operation. The rear side of the first nut 6 is in contact with the front side of the drive wheel 5 to ensure that the first nut 6 can effectively apply a fastening force to the drive wheel 5. The motor 7 is fixedly connected to the rear side of the bottom end of the support plate 1. The motor 7 serves as the power source of the entire device and provides driving force for the rotation of the sprocket 2. The side of the sprocket 2 away from the first limiting rod 4 is fixedly connected to the drive end of the motor 7, so that the power of the motor 7 can be directly transmitted to the sprocket 2.

[0026] A sliding hole 8 is provided inside the front side of the support plate 1. The sliding hole 8 provides a track and space for the sliding block 9 to slide. The sliding block 9 is slidably connected inside the sliding hole 8, and can slide flexibly within the sliding hole 8 to adjust its position. A second limiting rod 10 is rotatably connected to the front side of the sliding block 9. The second limiting rod 10 provides a support structure for the installation and rotation of the driven wheel 11. The driven wheel 11 is slidably connected to the outside of the second limiting rod 10. The driven wheel 11 can be adjusted on the second limiting rod 10 to adapt to different transmission conditions. The front of the second limiting rod 10... A second nut 12 is connected to the external thread on the side. The second nut 12 is used to fix the driven wheel 11 to a suitable position on the second limit rod 10. The rear side of the second nut 12 contacts the front side of the driven wheel 11 to ensure the fastening effect of the second nut 12 on the driven wheel 11. A receiving chamber 13 is provided inside the top of the support plate 1. The receiving chamber 13 is used to accommodate transmission components such as the driving bevel gear 14 and to provide installation space for them. The driving bevel gear 14 is rotatably connected to the front side of the inner wall of the receiving chamber 13. The driving bevel gear 14 is a key component for realizing the conversion and transmission of power direction.

[0027] The drive assembly includes a rotating disk 15 mounted on the front side of the drive bevel gear 14. The rotating disk 15 is used to manually drive the drive bevel gear 14, providing a manual operation method for the device. The rear side of the rotating disk 15 is fixedly connected to the front side of the drive bevel gear 14, allowing the rotation of the rotating disk 15 to directly drive the drive bevel gear 14. A handle 16 is fixedly connected to the front side of the rotating disk 15 off-center from the axis, providing a convenient grip for the operator to apply rotational force to the rotating disk 15. The rear side of the rotating disk 15 is connected to the top front side of the support plate 1. For rotational connection, to ensure that the rotating disk 15 can rotate stably around its own axis, the driven bevel gear 17 is rotatably connected to the bottom end of the inner wall of the receiving chamber 13. The driven bevel gear 17 cooperates with the driving bevel gear 14 to realize the vertical transmission of power. The driving bevel gear 14 and the driven bevel gear 17 are meshed. The stable and reliable power transmission is ensured by the gear meshing. The driven bevel gear 17 has a threaded rod 18 inside. The threaded rod 18 realizes linear motion under the drive of the driven bevel gear 17, converting the rotational motion into linear motion.

[0028] The elastic component is installed at the bottom end of the threaded rod 18. The elastic component includes a receiving block 19, which houses components such as the powerful springs 20 and provides a mounting carrier for the elastic component. The outer surface of the receiving block 19 is slidably connected to the inner wall of the sliding hole 8, allowing the receiving block 19 to slide within the sliding hole 8 for position adjustment. The top end of the receiving block 19 is rotatably connected to the bottom end of the threaded rod 18, ensuring smooth up-and-down movement of the receiving block 19 when the threaded rod 18 rotates. Multiple powerful springs 20 are installed inside the receiving block 19, providing elastic force. The top end of each powerful spring 20 is fixedly connected to the top end of the inner wall of the receiving block 19, ensuring the stability of the powerful springs 20 installation. The internal sliding connection is a limiting plate 21. Under the action of a strong spring 20, the limiting plate 21 can slide within the receiving long block 19, playing the role of limiting and transmitting force. The bottom end of the strong spring 20 is fixedly connected to the top end of the limiting plate 21, so that the elastic force of the strong spring 20 can act on the limiting plate 21. The bottom end of the limiting plate 21 is fixedly connected to multiple sliding rods 22. The multiple sliding rods 22 are used to transmit the movement of the limiting plate 21 to the sliding long block 9. The bottom end of the multiple sliding rods 22 is fixedly connected to the top end of the sliding long block 9, realizing the connection and force transmission between the elastic component and the sliding long block 9. The inner wall of the bottom end of the receiving long block 19 is slidably connected to the outside of the sliding rods 22, ensuring that the sliding rods 22 can slide smoothly within the receiving long block 19.

[0029] The working principle of the feeding device for a rebar bending machine provided by this utility model is as follows:

[0030] The motor 7 is started, and its output shaft directly drives the sprocket 2, which is coaxially connected to it, to rotate. Since multiple sets of sprockets 2 form a closed-loop transmission structure via chain 3, when the first set of sprockets 2 rotates, chain 3 synchronously pulls the remaining sprockets 2, causing all sprockets 2 to rotate cyclically along the path of chain 3. During the rotation of sprocket 2, the first limiting rod 4, rigidly connected to its front side, rotates along with it. The first limiting rod 4 acts as a support shaft for the drive wheel 5, transmitting the rotational power of the sprocket 2 and providing a guiding foundation for the radial sliding of the drive wheel 5. At this time, the drive wheel 5, fitted on the first limiting rod 4, begins to rotate around the axis of the limiting rod due to the circumferential force generated by the rotation of the limiting rod; simultaneously, the drive wheel 5 can slide axially along the limiting rod. The first nut 6 on the front side of the drive wheel 5 is locked to the limiting rod by threads, allowing for the fixation of the drive wheel 5 and facilitating replacement.

[0031] If different diameter steel bars need to be accommodated, the distance between the driving wheel 5 and the driven wheel 11 needs to be adjusted. At this time, the drive component intervenes, and the handle 16 is manually turned. The handle 16 drives the rotating disk 15 to rotate through the eccentric connection. The rear side of the rotating disk 15 is rigidly connected to the driving bevel gear 14. Therefore, the driving bevel gear 14 rotates synchronously with the rotating disk 15 on the front side of the inner wall of the receiving chamber 13. Since the driving bevel gear 14 and the driven bevel gear 17 are meshed, the rotational force of the driving bevel gear 14 is transmitted to the driven bevel gear 17 through the meshing of the teeth, driving the driven bevel gear 17 to rotate in the opposite direction at the bottom of the receiving chamber 13. The driven bevel gear 17 forms a screw drive with the threaded rod 18. When the driven bevel gear 17 rotates, the threaded rod 18 generates a linear displacement along its own axis due to the thread constraint. The bottom end of the threaded rod 18 is connected to the elastic component, which specifically means that the threaded rod 18 drives the receiving block 19 to rise and fall. Multiple sets of strong springs 20 are pre-installed inside the long block 19. The top of the springs is fixed to the inner wall of the long block 19, and the bottom of the springs abuts against the limiting plate 21. The bottom of the limiting plate 21 is rigidly connected to the sliding rod 22, and the bottom of the sliding rod 22 is fixed to the top of the sliding long block 9. When the long block 19 is raised or lowered, the strong springs 20 transmit force through the limiting plate 21 and the sliding rod 22, pushing the sliding long block 9 to slide in the sliding hole 8. The second limiting rod 10 on the front side of the sliding long block 9 moves along with it, causing the driven wheel 11 sleeved on the limiting rod to change position. The driven wheel 11 can slide axially along the second limiting rod 10, and the second nut 12 on the front side is used to lock its position for easy replacement. Finally, the distance between the driving wheel 5 and the driven wheel 11 can be precisely adjusted to adapt to different steel bar diameters.

[0032] After the spacing is adjusted, the reinforcing bar is placed in the gap between the driving wheel 5 and the driven wheel 11. At this time, the driving wheel 5 rotates continuously, using the friction between its surface and the surface of the reinforcing bar to generate a forward traction force. The driven wheel 11 rotates along with the reinforcing bar, assisting in supporting the reinforcing bar and maintaining conveying stability. During this process, the driving wheel 5 and the driven wheel 11 rotate in opposite directions, ensuring that the reinforcing bar is continuously clamped and pulled, conveying it to the processing station of the reinforcing bar bending machine. During conveying, if there is a slight deviation in the diameter of the reinforcing bar, the powerful spring 20 of the elastic component can automatically compensate for the gap through elastic deformation, avoiding jamming and ensuring continuous feeding.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A feeding device for a rebar bending machine, characterized in that, include: A support plate (1) is provided. Multiple sprockets (2) are rotatably connected to the bottom end of the support plate (1). A chain (3) is sleeved on the outside of the multiple sprockets (2). A first limiting rod (4) is fixedly connected to the front side of the sprockets (2). A drive wheel (5) is slidably connected to the outside of the first limiting rod (4). A first nut (6) is threadedly connected to the front side of the drive wheel (5). A motor (7) is fixedly connected to the rear side of the bottom end of the support plate (1). A sliding hole (8) is provided inside the front side of the support plate (1). A sliding block (9) is slidably connected inside the sliding hole (8). A second limiting rod (10) is rotatably connected to the front side of the sliding block (9). A driven wheel (11) is slidably connected to the outside of the second limiting rod (10). A second nut (12) is threadedly connected to the outside of the front side of the second limiting rod (10). The receiving chamber (13) is provided inside the top of the support plate (1), and the front side of the inner wall of the receiving chamber (13) is rotatably connected to the active bevel gear (14). The drive assembly is mounted on the front side of the drive bevel gear (14); Driven bevel gear (17) is rotatably connected to the bottom end of the inner wall of the receiving chamber (13), and a threaded rod (18) is threadedly connected to the inside of the driven bevel gear (17); The elastic component is installed at the bottom end of the threaded rod (18).

2. The feeding device for a rebar bending machine according to claim 1, characterized in that, The drive assembly includes a rotating disk (15), the rear side of which is fixedly connected to the front side of the drive bevel gear (14), a handle (16) is fixedly connected to the front side of the rotating disk (15) off-center, and the rear side of the rotating disk (15) is rotatably connected to the front top of the support plate (1).

3. The feeding device for a rebar bending machine according to claim 1, characterized in that, The elastic component includes a receiving long block (19), the top end of the receiving long block (19) is rotatably connected to the bottom end of the threaded rod (18), the receiving long block (19) is provided with multiple strong springs (20), the receiving long block (19) is slidably connected to a limiting plate (21), and the bottom end of the limiting plate (21) is fixedly connected to multiple sliding rods (22).

4. The feeding device for a rebar bending machine according to claim 1, characterized in that, The side of the sprocket (2) away from the first limiting rod (4) is fixedly connected to the drive end of the motor (7), and the outer side of the first limiting rod (4) near the sprocket (2) is rotatably connected to the inner wall of the front bottom end of the support plate (1).

5. The feeding device for a rebar bending machine according to claim 1, characterized in that, The rear side of the first nut (6) is in contact with the front side of the driving wheel (5), and the rear side of the second nut (12) is in contact with the front side of the driven wheel (11).

6. The feeding device for a rebar bending machine according to claim 1, characterized in that, The driving bevel gear (14) and the driven bevel gear (17) are meshed.

7. The feeding device for a rebar bending machine according to claim 3, characterized in that, The bottom ends of the multiple sliding rods (22) are fixedly connected to the top end of the sliding block (9), and the inner wall of the bottom end of the receiving block (19) is slidably connected to the outside of the sliding rods (22).

8. The feeding device for a rebar bending machine according to claim 3, characterized in that, The top end of the strong spring (20) is fixedly connected to the top end of the inner wall of the long block (19), the bottom end of the strong spring (20) is fixedly connected to the top end of the limiting plate (21), and the outer side of the long block (19) is slidably connected to the inner wall of the sliding hole (8).

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