Auxiliary pressing device for binding reinforcing steel bars

Abstract

The auxiliary pressing device comprises a plurality of bases distributed in the length direction of steel bars, two symmetrical arc-shaped supporting plates are hinged to the top faces of the bases, a locking cavity allowing the steel bars to be stored is formed after the two arc-shaped supporting plates are folded, and a connecting plate is hinged to the tops of the two arc-shaped supporting plates. The connecting plate is detachably connected with a driving mechanism used for driving the two arc-shaped supporting plates to be folded and pressing the multiple steel bars in the locking cavity. Before reinforcing steel bars are bound, a plurality of piled reinforcing steel bars can be extruded, so that the reinforcing steel bars are attached more tightly, the bound reinforcing steel bars cannot be loosened, the binding firmness is higher in the hoisting and transporting process, the reinforcing steel bars are not prone to falling out to cause safety accidents, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar production, in particular to an auxiliary pressing device for steel bar bundling. Background Art

[0002] Rebars are an indispensable part of construction projects. At present, in order to ensure the stability during transportation after production, steel bars are usually bundled and fixed at both ends and the middle of several steel bars using steel wires and steel belts. However, due to the large number of steel bars and the large gaps between several steel bars, several steel bars are relatively loose after bundling, which can easily lead to poor bundling firmness during the subsequent lifting and transportation process, and the steel bars are easy to fall out and cause safety accidents, posing a great safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide an auxiliary pressing device for steel bar bundling, which can squeeze a number of stacked steel bars before the steel bars are bundled, so that the steel bars will fit more closely together, the steel bars will not become loose after bundling, the bundling will be more secure during lifting and transportation, the steel bars are not likely to fall out and cause safety accidents, thus reducing safety hazards.

[0004] In order to solve the above technical problems, the utility model adopts the following solutions:

[0005] An auxiliary clamping device for steel bar bundling includes a plurality of bases distributed along the length direction of the steel bars, the top surface of the bases being hinged with two symmetrical arc-shaped support plates, the two arc-shaped support plates being closed to form a locking cavity for storing a plurality of steel bars, the tops of the two arc-shaped support plates being hinged with a connecting plate, the connecting plate being detachably connected with a driving mechanism for driving the two arc-shaped support plates to close and clamp a plurality of steel bars in the locking cavity.

[0006] By adopting the above technical scheme, after the steel bars are produced, they are placed in the locking cavity between the two arc-shaped support plates on each base. When enough steel bars are piled in the locking cavities, before bundling, a driving mechanism is first connected to the connecting plate, and the two arc-shaped support plates are driven to close by the driving mechanism. When the two arc-shaped support plates are closed, the several steel bars in the locking cavity are squeezed, and finally a cylindrical shape composed of several steel bars is formed, and then they are bundled at multiple positions of the cylindrical shape. After bundling, the driving mechanism drives the two arc-shaped support plates to open, and then the driving mechanism is removed, and the bundled several steel bars are hoisted to the designated position by the lifting equipment. In this way, after extrusion, the steel bars are more closely fitted to each other, and the steel bars will not be loose after bundling. The bundling is more firm during hoisting and transportation, and the steel bars are not easy to fall out to cause safety accidents, thereby reducing safety hazards.

[0007] Optionally, the driving mechanism includes a fixed plate and a driving assembly, the bottom surface of the fixed plate is provided with a connecting sleeve adapted to the connecting plate, the connecting sleeve is slidably connected to the fixed plate, the top surface of the fixed plate is provided with a sliding seat and a sliding groove, the lower end of the sliding seat is provided with a sliding block connected to the top surface of the connecting sleeve, the sliding block is located in the sliding groove, the driving assembly drives the sliding seat to move along the length direction of the sliding groove and drives the connecting sleeve to follow the movement, thereby driving the two arc-shaped support plates to close and squeeze a number of steel bars.

[0008] Optionally, the driving assembly includes a driving motor, a screw rod, and a fixed seat. The fixed seat is located on the outside of the two sliding seats. Both ends of the screw rod are movably connected to the two fixed seats respectively. One end of the screw rod passes through the fixed seat and is connected to the output end of the driving motor. The surface of the screw rod is provided with two sections of external threads with opposite spiral directions. The sliding seat is provided with an assembly hole allowing the screw rod to pass through. The inner wall of the assembly hole is provided with an internal thread that matches the external thread. The screw rod is threadedly connected to the sliding seat. The driving motor drives the screw rod to rotate, and the screw rod drives the sliding seat to move along the axis of the screw rod.

[0009] Optionally, a guide rod is provided on the side of the screw rod, and both ends of the guide rod are respectively connected to two fixing seats.

[0010] Optionally, the guide rod passes through two sliding seats.

[0011] Optionally, the two ends of the slide groove do not transversely penetrate the two ends of the fixed plate.

[0012] Optionally, the length of the sliding seat is greater than the width of the sliding groove, and the width of the connecting sleeve is greater than the width of the sliding groove.

[0013] Optionally, the bottom surface of the connecting sleeve is provided with an assembly cavity adapted to the size of the connecting plate, and the assembly cavity is rectangular when viewed from the side.

[0014] Optionally, the top surface of the connecting plate is arc-shaped, the connecting plate and the connecting sleeve are temporarily connected by pins, and the sides of the connecting plate and the connecting sleeve are provided with pin holes that match the pins.

[0015] Optionally, the bottom ends of the two arc-shaped support plates are hinged to the base, and the locking cavity formed when the two arc-shaped support plates are closed is circular.

[0016] The utility model has the beneficial effects:

[0017] 1. In the utility model, after the steel bars are produced, they are placed in the locking cavity between the two arc-shaped support plates on each base. When enough steel bars are piled in the locking cavities, before bundling, a driving mechanism is first connected to the connecting plate, and the two arc-shaped support plates are driven to close by the driving mechanism. When the two arc-shaped support plates are closed, the steel bars in the locking cavity are squeezed, and finally a cylindrical shape composed of the steel bars is formed, and then they are bundled at multiple positions of the cylindrical shape. After bundling, the driving mechanism drives the two arc-shaped support plates to open, and then the driving mechanism is removed, and the bundled steel bars are hoisted to the designated position by the lifting equipment. In this way, after squeezing, the steel bars are more closely fitted to each other, and the steel bars will not be loose after bundling. The bundling is more firm during hoisting and transportation, and the steel bars are not easy to fall out to cause safety accidents, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure after the arc-shaped support plate and the driving mechanism are assembled;

[0020] Figure 3 Schematic diagram of the top view of the driving mechanism;

[0021] Figure 4 This is the assembly structure diagram of the sliding seat and the connecting sleeve.

[0022] Figure markings: 1-base, 2-arc support plate, 3-connecting plate, 4-rebar, 5-hinge seat, 6-fixed plate, 7-drive motor, 8-screw, 9-sliding seat, 10-fixed seat, 11-connecting sleeve, 12-assembly cavity, 13-guide rod, 14-slider, 15-slide groove, 16-locking cavity. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] An auxiliary clamping device for steel bar bundling includes a plurality of bases 1 distributed along the length direction of the steel bars 4, the top surface of the base 1 is hinged with two symmetrical arc-shaped support plates 2, and when the two arc-shaped support plates 2 are closed, a locking cavity 16 for storing a plurality of steel bars 4 is formed, and the tops of the two arc-shaped support plates 2 are hinged with a connecting plate 3, and the connecting plate 3 is detachably connected with a driving mechanism for driving the two arc-shaped support plates 2 to close and compress a plurality of steel bars 4 in the locking cavity 16.

[0028] In this embodiment, Figure 1 As shown, at least three bases 1 are provided, and the base 1 can be a concrete base or a steel plate base. The three bases 1 are evenly spaced, and one of the bases 1 is located in the middle of the steel bar 4 to prevent the middle of the steel bar 4 from collapsing downward. At the same time, the two arc-shaped support plates 2 on each base 1 are opened to provide space for the steel bar 4 to enter the locking cavity 16. After the steel bar 4 is produced, it is placed in the locking cavity 16 between the two arc-shaped support plates 2 on each base 1. When enough steel bars 4 are stacked in the locking cavities 16, before bundling, the driving mechanism is first connected to the connecting plate 3. The connecting plate 3 is hinged to the arc-shaped support plate 2, which can ensure that the arc-shaped support plate 2 is in a vertical state or not, such as Figure 2 As shown, the connecting plates 3 can be connected and assembled with the driving mechanism, and the driving mechanism drives the two arc-shaped support plates 2 to close. When the two arc-shaped support plates 2 are closed, the multiple steel bars 4 in the locking cavity 16 are squeezed, and finally a quasi-cylindrical shape composed of the multiple steel bars 4 is formed, that is, it is not a completely regular cylinder. The driving mechanisms on multiple bases 1 work simultaneously, which can ensure that multiple parts of the steel bars 4 are squeezed at the same time, so that the squeezing effect is better. Then, the multiple positions of the quasi-cylindrical shape composed of the multiple steel bars 4 are bundled. After bundling, the driving mechanism drives the two arc-shaped support plates 2 to open, and then the driving mechanism is removed. The bundled multiple steel bars 4 are hoisted to the designated position by the lifting equipment. After extrusion, the steel bars 4 are more closely fitted to each other, and the steel bars 4 will not be loose after bundling. The bundling is more firm during hoisting and transportation, and the steel bars 4 are not easy to fall out to cause safety accidents, thereby reducing safety hazards.

[0029] Furthermore, the driving mechanism includes a fixed plate 6 and a driving assembly. The bottom surface of the fixed plate 6 is provided with a connecting sleeve 11 adapted to the connecting plate 3. The connecting sleeve 11 is slidably connected to the fixed plate 6. The top surface of the fixed plate 6 is provided with a sliding seat 9 and a sliding groove 15. The lower end of the sliding seat 9 is provided with a slider 14 connected to the top surface of the connecting sleeve 11. The slider 14 is located in the sliding groove 15. The driving assembly drives the sliding seat 9 to move along the length direction of the sliding groove 15 and drives the connecting sleeve 11 to follow the movement, thereby driving the two arc-shaped support plates 2 to close and squeeze a number of steel bars 4.

[0030] Specifically, Figure 2 As shown, as the basis of the entire driving mechanism, the bottom surface of the fixed plate 6 is provided with a connecting sleeve 11 adapted to the connecting plate 3, and the connecting sleeve 11 is slidably connected to the fixed plate 6, so that the connecting sleeve 11 can slide along the fixed plate 6, and the connecting sleeve 11 is adapted to the connecting plate 3, and is used to connect the fixed plate 6 and the connecting plate 3. The sliding connection between the connecting sleeve 11 and the fixed plate 6 allows the connecting plate 3 (and other components connected thereto) to move on the fixed plate 6, and a sliding seat 9 and a sliding groove 15 are provided on the top plate of the fixed plate 6, as shown in FIG. Figure 4 As shown, the lower end of the sliding seat 9 is provided with a slider 14 connected to the top surface of the connecting sleeve 11, and the slider 14 is located in the slide groove 15. This design allows the sliding seat 9 to move along the length direction of the slide groove 15. The driving assembly is used to drive the sliding seat 9 to move along the length direction of the slide groove 15. When the sliding seat 9 moves, it drives the connecting sleeve 11 to follow the movement through the slider 14, thereby driving the two arc-shaped support plates 2 to close and squeeze the steel bars 4. Initial state: The two arc-shaped support plates 2 are in an open state, and the connecting plate 3, the connecting sleeve 11 and the sliding seat 9 are all in the initial position. After the steel bars 4 are stacked in the locking cavity 16 between the two arc-shaped support plates 2, the driving assembly is started. The driving assembly drives the sliding seat 9 to move along the length direction of the slide groove 15. Since the slider 14 is connected to the top surface of the connecting sleeve 11, when the sliding seat 9 moves, the slider 14 drives the connecting sleeve 11 to follow the movement. The movement of the connecting sleeve 11 drives the two arc-shaped support plates 2 to close through the connecting plate 3, thereby squeezing a number of steel bars 4 placed therein. Through the drive of the driving assembly, In order to conveniently control the opening and closing degree of the arc-shaped support plate 2 to adapt to different numbers and sizes of steel bars 4, the design of the sliding seat 9 and the slide groove 15 makes the movement process smoother and more accurate, which is conducive to ensuring the stable clamping of the steel bars 4. After bundling, the driving component drives the two arc-shaped support plates 2 to open, and then the driving mechanism is removed, and the bundled steel bars 4 are hoisted to the designated position through the lifting equipment. In this way, after squeezing, the steel bars 4 are more closely fitted to each other, and the steel bars 4 will not be loose after bundling. The bundling is more firm during lifting and transportation, and the steel bars 4 are not easy to fall out and cause safety accidents, thereby reducing safety hazards.

[0031] Furthermore, the driving assembly includes a driving motor 7, a screw rod 8, and a fixed seat 10. The fixed seat 10 is located on the outside of the two sliding seats 9. The two ends of the screw rod 8 are respectively movably connected to the two fixed seats 10. One end of the screw rod 8 passes through the fixed seat 10 and is connected to the output end of the driving motor 7. The surface of the screw rod 8 is provided with two sections of external threads with opposite spiral directions. The sliding seat 9 is provided with an assembly hole allowing the screw rod 8 to pass through. The inner wall of the assembly hole is provided with an internal thread that matches the external thread. The screw rod 8 is threadedly connected to the sliding seat 9. The driving motor 7 drives the screw rod 8 to rotate, and the screw rod 8 drives the sliding seat 9 to move along the axis of the screw rod 8.

[0032] Specifically, Figure 3 As shown, the drive motor 7 serves as a power source, and the drive motor 7 is responsible for generating rotational power to drive the screw rod 8 to rotate. The screw rod 8 is a transmission element, and its two ends are respectively movably connected to two fixed seats 10. One end of the screw rod 8 passes through the fixed seat 10 and is connected to the output end of the drive motor 7 to ensure that the rotational power of the motor can be transmitted to the screw rod 8. The fixed seat 10 is located on the outside of the two sliding seats 9, and is used to support the screw rod 8 and keep it stable. The design of the fixed seat 10 should ensure that the screw rod 8 can rotate smoothly inside it. The surface of the screw rod 8 is provided with two sections of external threads with opposite spiral directions. This design enables the screw rod 8 to simultaneously drive the two sliding seats 9 to move in opposite directions or the same direction when rotating. The sliding seat 9 is provided with an assembly hole (not marked in the figure) for allowing the screw rod 8 to pass through, and the inner wall of the assembly hole is provided with an internal thread that matches the external thread. This design enables a threaded connection between the screw rod 8 and the sliding seat 9 to ensure that the sliding seat 9 can move along the axis of the screw rod 8. When the driving motor 7 is started, its output end starts to rotate, driving the screw rod 8 to rotate. The screw rod 8 starts to rotate under the drive of the motor. Since the surface of the screw rod 8 is provided with two sections of external threads with opposite spiral directions, when the screw rod 8 rotates, the two sections of threads will respectively drive the two sliding seats 9 to move in opposite directions or the same direction. Since the inner wall of the assembly hole is provided with internal threads adapted to the external threads, the rotation of the screw rod 8 will be converted into the linear movement of the sliding seat 9. The sliding seat 9 moves along the axis of the screw rod 8, thereby driving the connecting sleeve 11 and the arc-shaped support plate 2 to close or open. As the sliding seat 9 moves, the two arc-shaped support plates 2 gradually close and squeeze the several steel bars 4 placed therein. After such squeezing, the steel bars 4 are more closely fitted to each other, and the steel bars 4 will not be loose after bundling. The bundling is more secure during hoisting and transportation, and the steel bars 4 are not easy to fall out and cause safety accidents, thereby reducing safety hazards. By controlling the rotation speed and direction of the driving motor 7, the moving speed and position of the sliding seat 9 and the arc-shaped support plate 2 can be accurately controlled to achieve precise clamping. The screw rod 8 transmission has the advantages of high transmission efficiency and high transmission accuracy, which can ensure that the sliding seat 9 and the arc-shaped support plate 2 move smoothly and accurately. The screw rod 8 transmission has a self-locking function. When the driving motor 7 stops working, the sliding seat 9 and the arc-shaped support plate 2 can remain in the current position to prevent accidental sliding.

[0033] Furthermore, a guide rod 13 is provided on the side of the screw rod 8 , and two ends of the guide rod 13 are respectively connected to two fixing seats 10 .

[0034] Specifically, Figure 3 As shown, when the driving motor 7 is started and drives the screw rod 8 to rotate, the sliding seat 9, in addition to being threadedly connected with the screw rod 8 and moving, is also guided by the guide rod 13. The guide rod 13 provides a clear moving direction for the sliding seat 9, ensuring that the sliding seat 9 can move accurately along the axis of the screw rod 8. Due to the presence of the guide rod 13, the sliding seat 9 is more stable during the movement, reducing the deviation or shaking caused by external force or vibration, which helps to improve the accuracy and reliability of clamping the steel bar 4. The combined use of the guide rod 13 and the screw rod 8 can further improve the accuracy of the transmission system. The guide rod 13 ensures the linearity of the sliding seat 9 during the movement, while the screw rod 8 provides precise rotation and movement control, which enables the entire drive assembly to achieve precise clamping and positioning of the steel bar 4.

[0035] Furthermore, the guide rod 13 passes through the sliding seat 9 .

[0036] Specifically, the length of the guide rod 13 should be sufficient to pass through the entire sliding seat 9, thereby ensuring that the movement of the sliding seat 9 in the axial direction of the screw rod 8 is always constrained by the guide rod 13. The interior of the sliding seat 9 should be designed with a channel or hole matching the guide rod 13 so that the guide rod 13 can smoothly pass through the sliding seat 9. The design of the guide rod 13 passing through the sliding seat 9 can ensure that the sliding seat 9 always maintains close contact with the guide rod 13 during the movement, thereby enhancing the stability of the movement of the sliding seat 9. This design can also reduce the vibration and deviation caused by the rotation of the screw rod 8, further improving the accuracy and reliability of the device.

[0037] Furthermore, the two ends of the slide groove 15 do not transversely penetrate the two ends of the fixing plate 6 .

[0038] Specifically, the design that the two ends of the slide groove 15 do not penetrate the fixed plate 6 ensures that the sliding seat 9 will not completely separate from the slide groove 15 when moving along the slide groove 15, thereby limiting its range of movement. Since the range of movement of the sliding seat 9 is limited, this design reduces the risk of the sliding seat 9 separating from the slide groove 15 due to misoperation or mechanical failure during operation, thereby improving the safety of operation. The stable movement of the sliding seat 9 in the slide groove 15 ensures the stable operation of the movable connection sleeve 11 and the arc support plate 2 connected thereto, further enhancing the stability of the entire device. Buffer mechanisms, such as rubber pads, springs, etc., can be set at both ends of the slide groove 15 to reduce the collision force between the sliding seat 9 and the fixed plate 6 when moving to the two ends of the slide groove 15, reduce noise and wear. Since the sliding seat 9 frequently moves in the slide groove 15, the wear resistance of the slide groove 15 and the sliding seat 9 is very important. Materials with good wear resistance can be selected to manufacture the slide groove 15 and the sliding seat 9, or a wear-resistant coating can be applied on their surfaces to extend the service life.

[0039] Furthermore, the length of the sliding seat 9 is greater than the width of the sliding groove 15 , and the width of the connecting sleeve 11 is greater than the width of the sliding groove 15 .

[0040] Specifically, the dimensions of the sliding seat 9 and the connecting sleeve 11 are designed so that the sliding seat 9 will not fall from the sliding groove 15 and the connecting sleeve 11 will not pass through the sliding groove 15, thereby achieving a double-sided limiting effect.

[0041] Furthermore, the bottom surface of the connecting sleeve 11 is provided with an assembly cavity 12 which is adapted to the size of the connecting plate 3 , and the assembly cavity 12 is rectangular in side view.

[0042] Specifically, the connecting sleeve 11 is a movable component, and an assembly cavity 12 is provided on the bottom surface of the connecting sleeve 11. The side view shape of the assembly cavity 12 is rectangular. The rectangular design makes the contact surface between the assembly cavity 12 and the connecting plate 3 more stable, and is convenient for processing and assembly. The size of the assembly cavity 12 is adapted to the size of the connecting plate 3, which means that key dimensions such as the width, depth and height of the assembly cavity 12 are precisely calculated and designed to ensure that the connecting plate 3 can be completely and accurately loaded into the assembly cavity 12, thereby achieving a stable connection. The connecting plate 3 matches the assembly cavity 12 on the bottom surface of the movable connecting sleeve 11 through its shape and size, and can be smoothly loaded into the assembly cavity 12.

[0043] Furthermore, the top surface of the connecting plate 3 is in an arc shape, and the connecting plate 3 and the connecting sleeve 11 are temporarily connected via pins, and the sides of the connecting plate 3 and the connecting sleeve 11 are provided with pin holes adapted to the pins.

[0044] Specifically, the top surface of the connecting plate 3 is designed to be in an arc shape, so that the connecting plate 3 is easier to insert into the assembly cavity 12 on the bottom surface of the connecting sleeve 11, thereby improving the installation efficiency of the drive mechanism. The connecting sleeve 11 and the connecting plate 3 are temporarily connected by pins. This connection method allows for quick assembly and disassembly when needed, thereby improving operational efficiency. The sides of the connecting plate 3 and the connecting sleeve 11 are provided with pin holes that match the pins. The positions and sizes of these pin holes are precisely designed to ensure that the pins can be smoothly inserted and fix the components. The connecting plate 3 and the connecting sleeve 11 are connected together by pins to form a stable structure. Since pin connection is adopted, this connection is temporary and can be disassembled and reassembled at any time as needed.

[0045] Furthermore, the bottom ends of the two arc-shaped support plates 2 are hinged to the base 1, and the locking cavity 16 formed when the two arc-shaped support plates 2 are closed is circular.

[0046] Specifically, a hinge seat 5 is provided on the top surface of the base 1, and the bottom ends of the two arc-shaped support plates 2 are hinged on the hinge seat 5, which is generally achieved by a pin hinge. There is a spacing between the hinge seat 5 and the top surface of the base 1, which provides a rotation space for the arc-shaped support plate 2, and the support plate can rotate within a certain angle range. This design allows the support plate to be flexibly opened and closed, which is convenient for putting in or taking out the objects to be locked. When the two arc-shaped support plates 2 are fully closed, they together form a circular locking cavity 16. The size and shape of this locking cavity 16 are designed according to the size and shape of several stacked steel bars 4 to ensure that several steel bars 4 can be tightly clamped in the cavity to prevent them from loosening or slipping, so that they are not easy to scatter after subsequent bundling.

[0047] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. An auxiliary pressing device for steel bar bundling, characterized in that: The invention comprises a plurality of bases (1) distributed along the length direction of the steel bars (4); the top surface of the base (1) is hinged with two symmetrical arc-shaped support plates (2); when the two arc-shaped support plates (2) are closed, a locking cavity (16) for storing a plurality of steel bars (4) is formed; the tops of the two arc-shaped support plates (2) are hinged with a connecting plate (3); and the connecting plate (3) is detachably connected with a driving mechanism for driving the two arc-shaped support plates (2) to close and press the plurality of steel bars (4) in the locking cavity (16).

2. The auxiliary pressing device for steel bar bundling according to claim 1, characterized in that: The driving mechanism comprises a fixed plate (6) and a driving assembly. The bottom surface of the fixed plate (6) is provided with a connecting sleeve (11) adapted to the connecting plate (3). The connecting sleeve (11) is slidably connected to the fixed plate (6). The top surface of the fixed plate (6) is provided with a sliding seat (9) and a sliding groove (15). The lower end of the sliding seat (9) is provided with a sliding block (14) connected to the top surface of the connecting sleeve (11). The sliding block (14) is located in the sliding groove (15). The driving assembly drives the sliding seat (9) to move along the length direction of the sliding groove (15) and drives the connecting sleeve (11) to follow the movement, thereby driving the two arc-shaped support plates (2) to close and squeeze a plurality of steel bars (4).

3. The auxiliary pressing device for steel bar bundling according to claim 2, characterized in that: The driving assembly comprises a driving motor (7), a screw rod (8), and a fixed seat (10). The fixed seat (10) is located outside the two sliding seats (9). The two ends of the screw rod (8) are movably connected to the two fixed seats (10) respectively. One end of the screw rod (8) passes through the fixed seat (10) and is connected to the output end of the driving motor (7). The surface of the screw rod (8) is provided with two sections of external threads with opposite spiral directions. The sliding seat (9) is provided with an assembly hole for allowing the screw rod (8) to pass through. The inner wall of the assembly hole is provided with an internal thread adapted to the external thread. The screw rod (8) is threadedly connected to the sliding seat (9). The driving motor (7) drives the screw rod (8) to rotate, and the screw rod (8) drives the sliding seat (9) to move along the axis of the screw rod (8).

4. The auxiliary pressing device for steel bar bundling according to claim 3, characterized in that: A guide rod (13) is provided on the side of the screw rod (8), and two ends of the guide rod (13) are respectively connected to two fixing seats (10).

5. The auxiliary pressing device for steel bar bundling according to claim 4, characterized in that: The guide rod (13) passes through the two sliding seats (9).

6. The auxiliary pressing device for steel bar bundling according to claim 2, characterized in that: The two ends of the slide groove (15) do not transversely penetrate the two ends of the fixing plate (6).

7. The auxiliary pressing device for steel bar bundling according to claim 2, characterized in that: The length of the sliding seat (9) is greater than the width of the sliding groove (15), and the width of the connecting sleeve (11) is greater than the width of the sliding groove (15).

8. The auxiliary pressing device for steel bar bundling according to claim 2, characterized in that: The bottom surface of the connecting sleeve (11) is provided with an assembly cavity (12) whose size matches that of the connecting plate (3); the assembly cavity (12) is rectangular in side view.

9. The auxiliary pressing device for steel bar bundling according to claim 8, characterized in that: The top surface of the connecting plate (3) is in an arc shape, the connecting plate (3) and the connecting sleeve (11) are temporarily connected via a pin, and the sides of the connecting plate (3) and the connecting sleeve (11) are both provided with pin holes adapted to the pins.

10. The auxiliary pressing device for steel bar bundling according to claim 1, characterized in that: The bottom ends of the two arc-shaped support plates (2) are hinged to the base (1), and the locking cavity (16) formed when the two arc-shaped support plates (2) are closed is circular.

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