Auxiliary feeding device of steel bar bending machine

Abstract

This utility model relates to the field of rebar processing technology, specifically an auxiliary feeding device for a rebar bending machine, including a base and a stabilizing mechanism. The base has a lifting platform, on which four rectangular arrayed support columns are mounted. A top seat is mounted on each support column, and a rotating shaft is rotatably connected inside the top seat. A mounting plate is located below the top seat. The stabilizing mechanism includes a disc with three annularly arrayed arc-shaped through holes, rectangular inserts and a first handle mounted on the disc, three screws passing through the arc-shaped through holes, a pressure plate coaxially mounted on the screws, and a second handle mounted on the pressure plate. The end of the rotating shaft has a slot that matches the rectangular inserts. The top seat has multiple annularly arrayed threaded grooves, with the screws threaded into the threaded grooves. The pressure plate abuts against the disc. This utility model not only solves the problem of the lack of a guiding structure when the guide roller moves but also ensures the stability of the guide roller during the feeding process.

Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology, and in particular to an auxiliary feeding device for a steel bar bending machine. Background Technology

[0002] Rebar bending machines are indispensable specialized equipment in construction engineering. They are mainly used to precisely bend straight steel bars into specific angles or shapes according to design requirements to meet the construction needs of different structural parts. As one of the core pieces of rebar processing machinery, it applies controllable bending force to the rebar through mechanical or hydraulic driving of the mold, ensuring the geometric accuracy and structural strength of the rebar cage.

[0003] Chinese Patent No. CN220591423U discloses an auxiliary feeding device for a rebar bending machine, including a support box. A feeding platform is mounted on the top of the support box. A lifting plate is slidably mounted on the inner wall of the support box. Multiple push rods are fixedly mounted on the top of the lifting plate, and the tops of the push rods are fixedly mounted on the feeding platform. Two partitions are fixedly mounted inside the support box, with the lifting plate located between the two partitions. Two threaded rods are rotatably mounted between the two partitions, and the lifting plate is threaded onto the two threaded rods. Two U-shaped shells are fixedly mounted on the top of the feeding platform. Conveying shafts are rotatably mounted on the front and rear inner walls of the U-shaped shells, and conveying rollers are fixedly mounted on the conveying shafts. This auxiliary feeding device can adjust the height of the feeding platform and the distance between the two conveying rollers and the guide roller, thereby enabling the feeding of rebars of different diameters to rebar bending machines of different heights.

[0004] However, the above technical solution has the following shortcomings: when the device starts the rotating motor to drive the synchronous rod to rotate and make the drive seat move horizontally, it not only lacks a guiding structure for the movement direction of the sliding plate, but also cannot guarantee the stability of the synchronous rod after it stops adjusting. When feeding steel bars, the accompanying vibration may cause the guide roller to deviate. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing an auxiliary feeding device for a steel bar bending machine. This device not only solves the problem of the lack of a guiding structure when the guide roller moves, but also ensures the stability of the guide roller during the feeding process.

[0006] The present invention provides an auxiliary feeding device for a rebar bending machine, comprising a base and a stabilizing mechanism. A lifting platform is mounted on the base, and four rectangular arrayed support columns are mounted on the lifting platform. A top seat is mounted on each support column, and a rotating shaft is rotatably connected inside the top seat. A mounting plate is located below the top seat. The stabilizing mechanism includes a disc with three annularly arrayed arc-shaped through holes, a rectangular insert and a first handle mounted on the disc, three screws passing through the arc-shaped through holes, a pressure plate coaxially mounted on the screws, and a second handle mounted on the pressure plate. The end of the rotating shaft has a slot that matches the rectangular insert. The top seat has multiple annularly arrayed threaded grooves, with the screws threaded into the threaded grooves. The pressure plate abuts against the disc.

[0007] Preferably, a crossbeam is provided on the support column, a first fixed frame is provided on the crossbeam, and a conveying roller is rotatably connected to the first fixed frame.

[0008] Preferably, the mounting plate is provided with two second fixing brackets, and guide rollers are rotatably connected to the second fixing brackets.

[0009] Preferably, a driving mechanism is provided on the top seat. The driving mechanism includes a motor on the top seat, two symmetrically distributed moving blocks, two guide blocks on the moving blocks, a first connecting member on the moving blocks, a second connecting member on the mounting plate, and a connecting rod whose two ends are respectively movably connected to the first connecting member and the second connecting member; the motor and the rotating shaft are driven together, and the guide blocks are horizontally slidably disposed inside the top seat.

[0010] Preferably, the rotating shaft is provided with two symmetrically distributed threaded sections with opposite helical directions, and the moving blocks on both sides are respectively threadedly connected to the threaded sections on both sides.

[0011] Preferably, the mounting plate is provided with four symmetrically distributed sliders, which are slidably connected to the support column.

[0012] Preferably, the slider is provided with multiple linearly distributed rollers, which are rotatably connected to the support column.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] This utility model features a drive mechanism that allows adjustment of the mounting plate's height. This mechanism adjusts the distance between the guide rollers and the conveying rollers according to the thickness of the reinforcing bars, enabling the feeding of reinforcing bars of different sizes. Simultaneously, a stabilizing mechanism restricts the adjusted rotating shaft, preventing axial deflection during feeding and thus avoiding changes in the height of the guide rollers. This ensures the stability of the feeding process, and the design is convenient to operate, demonstrating excellent practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a structural cross-sectional view of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram showing the connection of some structures of this utility model;

[0018] Figure 4 This is a schematic diagram of the stabilizing mechanism of this utility model.

[0019] Reference numerals: 1. Base; 2. Lifting platform; 3. Support column; 4. Top seat; 5. Motor; 6. Rotating shaft; 7. Threaded part; 8. Moving block; 9. Guide block; 10. First connecting piece; 11. Connecting rod; 12. Mounting plate; 13. Second connecting piece; 14. Slider; 15. Roller; 16. Cross frame; 17. First fixed frame; 18. Conveying roller; 19. Second fixed frame; 20. Guide roller; 21. Disc; 22. Arc-shaped through hole; 23. Rectangular insert; 24. First grip; 25. Pressure plate; 26. Screw; 27. Second grip. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-4 As shown in the figure, the auxiliary feeding device for a rebar bending machine proposed in this embodiment includes a base 1 and a stabilizing mechanism. A lifting platform 2 is provided on the base 1, and four support columns 3 arranged in a rectangular array are provided on the lifting platform 2. A top seat 4 is provided on the support columns 3, and a rotating shaft 6 is rotatably connected inside the top seat 4. An mounting plate 12 is provided below the top seat 4. A cross frame 16 is provided on the support columns 3, and a first fixed frame 17 is provided on the cross frame 16. A conveying roller 18 is rotatably connected to the first fixed frame 17. Two second fixed frames 19 are provided on the mounting plate 12, and guide rollers 20 are rotatably connected to the second fixed frames 19. The auxiliary feeding operation of the rebar to be bent is realized by the cooperation of the conveying roller 18 and the guide roller 20. The lifting platform 2 can adjust the height of the guide roller 20 according to the feeding height to adapt to different feeding positions of the bending machine.

[0022] The stabilizing mechanism includes a disc 21 with three arc-shaped through holes 22 arranged in a ring array, a rectangular insert 23 and a first grip 24 disposed on the disc 21, three screws 26 that pass through the arc-shaped through holes 22 respectively, a pressure plate 25 coaxially disposed on the screws 26, and a second grip 27 disposed on the pressure plate 25; the end of the rotating shaft 6 is provided with a slot that is compatible with the rectangular insert 23, the top seat 4 is provided with multiple threaded grooves arranged in a ring array, the screws 26 are threaded into the inside of the threaded grooves, and the pressure plate 25 is abutting against the disc 21.

[0023] In this embodiment, the height of the guide roller 20 can be adjusted by adjusting the height of the mounting plate 12, so as to adjust the distance between the guide roller 20 and the conveying roller 18 according to the thickness of the steel bar, thereby enabling the guiding and feeding of steel bars of different sizes. After each adjustment of the height of the mounting plate 12, the rectangular insert 23 on the disc 21 is inserted into the slot at the end of the rotating shaft 6 by the first grip 24, and then the three screws 26 are respectively passed through the three arc-shaped through holes 22 and screwed into the threaded grooves on the top seat 4 by the second grip 27 until the pressure plate 25 is pressed tightly against the disc 21, thereby restricting the axial rotation of the rotating shaft 6. This prevents the vibration of the guide roller 20 during the feeding process from being transmitted through the mounting plate 12, which could cause the rotating shaft 6 to deflect and the mounting plate 12 to shift vertically. This ensures the stability of the guide roller 20 during the conveying process, thereby ensuring the stability of the steel bar feeding. The operation is simple and convenient, and it has good practicality.

[0024] Example 2

[0025] like Figure 2 and Figure 3 As shown, this embodiment proposes an auxiliary feeding device for a rebar bending machine. Compared with Embodiment 1, in this embodiment, a driving mechanism is provided on the top seat 4. The driving mechanism includes a motor 5 on the top seat 4, two symmetrically distributed moving blocks 8, two guide blocks 9 on the moving blocks 8, a first connecting member 10 on the moving blocks 8, a second connecting member 13 on the mounting plate 12, and a connecting rod 11 whose two ends are respectively movably connected to the first connecting member 10 and the second connecting member 13. The motor 5 and the rotating shaft 6 are drivenly connected. The guide blocks 9 are horizontally slidably disposed inside the top seat 4. The rotating shaft 6 is provided with two symmetrically distributed threaded portions 7 with opposite spiral directions. The moving blocks 8 on both sides are respectively threadedly connected to the threaded portions 7 on both sides.

[0026] The mounting plate 12 is provided with four symmetrically distributed sliders 14, which are slidably connected to the support column 3. Multiple linearly distributed rollers 15 are provided on the sliders 14, which are rollably connected to the support column 3.

[0027] In this embodiment, when the height of the guide roller 20 is adjusted, the motor 5 is started to drive the rotating shaft 6 to rotate. The two threaded parts 7 on the rotating shaft 6 are respectively screwed into the moving blocks 8 on both sides. Under the guidance of the guide block 9, the moving block 8 drives the first connecting piece 10 on it to move, so that the connecting rod 11 rotates relative to it. Then, the second connecting piece 13 drives the mounting plate 12 to move through the force transmitted by the connecting rod 11. Since the slider 14 guides the movement of the mounting plate 12, the mounting plate 12 drives the guide roller 20 to move vertically. In addition, the roller 15 provided can greatly reduce the friction when the mounting plate 12 moves up and down, reduce the energy consumption and wear of the device, and has good practicality.

[0028] 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. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An auxiliary feeding device for a rebar bending machine, characterized in that, include: A base (1) is provided with a lifting platform (2), and four rectangular array of support columns (3) are provided on the lifting platform (2). A top seat (4) is provided on the support columns (3). A rotating shaft (6) is rotatably connected inside the top seat (4). An installation plate (12) is provided below the top seat (4). The stabilizing mechanism includes a disc (21) with three annularly arranged arc-shaped through holes (22), a rectangular insert (23) and a first grip (24) disposed on the disc (21), three screws (26) passing through the arc-shaped through holes (22) respectively, a pressure plate (25) coaxially disposed on the screws (26), and a second grip (27) disposed on the pressure plate (25); the end of the rotating shaft (6) is provided with a slot that is compatible with the rectangular insert (23), the top seat (4) is provided with multiple annularly arranged threaded grooves, the screws (26) are threaded into the inside of the threaded grooves, and the pressure plate (25) is abutting against the disc (21).

2. The auxiliary feeding device for a rebar bending machine according to claim 1, characterized in that, A crossbeam (16) is provided on the support column (3), a first fixed frame (17) is provided on the crossbeam (16), and a conveying roller (18) is rotatably connected to the first fixed frame (17).

3. The auxiliary feeding device for a rebar bending machine according to claim 1, characterized in that, The mounting plate (12) is provided with two second fixing brackets (19), and guide rollers (20) are rotatably connected to the second fixing brackets (19).

4. The auxiliary feeding device for a rebar bending machine according to claim 1, characterized in that, A drive mechanism is provided on the top seat (4). The drive mechanism includes a motor (5) on the top seat (4), two symmetrically distributed moving blocks (8), two guide blocks (9) on the moving blocks (8), a first connecting piece (10) on the moving blocks (8), a second connecting piece (13) on the mounting plate (12), and a connecting rod (11) whose two ends are movably connected to the first connecting piece (10) and the second connecting piece (13) respectively. The motor (5) and the rotating shaft (6) are driven and connected. The guide block (9) is horizontally slidably disposed inside the top seat (4).

5. The auxiliary feeding device for a rebar bending machine according to claim 4, characterized in that, The rotating shaft (6) is provided with two symmetrically distributed threaded parts (7) with opposite spiral directions, and the moving blocks (8) on both sides are threadedly connected to the threaded parts (7) on both sides respectively.

6. The auxiliary feeding device for a rebar bending machine according to claim 1, characterized in that, The mounting plate (12) is provided with four symmetrically distributed sliders (14), which are slidably connected to the support column (3).

7. The auxiliary feeding device for a rebar bending machine according to claim 6, characterized in that, The slider (14) is provided with multiple linearly distributed rollers (15), which are tumblingly connected to the support column (3).

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