Auxiliary roller for automatic straightening of steel bar truss

Abstract

The utility model discloses a steel bar truss automatic straightening auxiliary roller which comprises a circular column, limiting rings used for limiting steel bars are arranged at the two ends of the circular column in a sleeved mode, and the upper portions of the opposite ends of the two sets of limiting rings are arranged in a chamfering mode. Two sets of limiting rings are arranged at the two ends of the circular column, an adjusting assembly used for adjusting the distance between the two sets of limiting rings so as to adapt to reinforcing steel bars of different models is arranged in the circular column, and a connecting shaft used for being connected with the output end of a reinforcing steel bar straightening machine body is fixedly connected to the end of one side of the circular column. The reinforcing steel bars are prevented from being disengaged from the side face in the straightening process and move along a preset path, and the straightening stability and accuracy are improved. And the upper part of the opposite end of the limiting ring is chamfered, so that the steel bar can be smoothly guided into the limiting ring, the obstruction during steel bar guiding is reduced, and the operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of automatic straightening auxiliary rollers for steel trusses, specifically an automatic straightening auxiliary roller for steel trusses. Background Technology

[0002] A steel truss, through the rational arrangement of top chord reinforcement, bottom chord reinforcement, and web reinforcement, forms a truss force-bearing system. The top chord reinforcement is under compression, the bottom chord reinforcement is under tension, and the web reinforcement resists shear force, which can give full play to the mechanical properties of the steel bars and effectively bear the load.

[0003] Chinese patent CN215199421U discloses a rebar feeding and straightening device for a rebar truss machine. This device includes a rebar straightening machine body connected to multiple sets of rebar straightening rollers and multiple sets of fixed plates. Sliding rods are slidably engaged between opposing sets of fixed plates, and rotating columns are sleeved between the opposite ends of the sliding rods. Each set of fixed plates has a groove, within which a lead screw is rotatably connected. The lead screw passes through the sidewall of the fixed plate opposite to the rebar straightening machine body and extends outwards. A pulley is fixedly connected to the extended end of the lead screw, and a drive belt connects the opposing pulleys. This rebar feeding and straightening device ensures the normal operation of the rebar truss machine, prevents rebar from potentially ejecting from between the rebar straightening rollers and causing injury, and guarantees worker safety.

[0004] The steel bar feeding and straightening device of the aforementioned steel bar truss machine has some problems in use. The surface of the steel bar straightening roller is set in a plane, and the roller has a weak lateral restraint on the steel bar, making it difficult to effectively restrict the lateral movement of the steel bar. This may cause the steel bar to deviate from the straightening path or even fall out between the rollers, affecting the stability and safety of the straightening operation. It may also require frequent machine stops to adjust the position of the steel bar, affecting production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an automatic straightening auxiliary roller for steel trusses to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic straightening auxiliary roller for steel trusses includes a circular column. Both ends of the circular column are fitted with limiting rings for limiting the movement of the steel bars. The upper part of the opposite ends of the two sets of limiting rings is set at a chamfer. The interior of the circular column is provided with an adjustment component for adjusting the distance between the two sets of limiting rings to accommodate different types of steel bars. A connecting shaft for connecting to the output end of the main body of the steel bar straightening machine is fixedly connected to one end of the circular column.

[0008] As a preferred technical solution, the adjustment component includes a star-shaped groove at both ends of the circular column, two sets of star-shaped grooves are set along the height of the circular column, and a star-shaped plate is slidably connected to the inner cavity of each set of star-shaped grooves. The two sets of limiting rings are respectively connected to the corresponding side star-shaped plate through detachable connectors. The inner cavity of the circular groove is provided with a driving component that simultaneously drives the two sets of star-shaped plates to move inward.

[0009] As a preferred technical solution, the driving assembly includes a connecting column rotatably inserted into the middle of a circular column. Both ends of the two sets of connecting columns are fixedly connected with threaded rods. The threads of the two sets of threaded rods are arranged in opposite directions. Corresponding nut seats are threadedly connected to the surfaces of the two sets of threaded rods. The two sets of nut seats are fixedly inserted into the middle of the corresponding side cross-shaped plates. Hexagonal grooves are opened at the opposite ends of the two sets of threaded rods. An anti-deviation component is provided on the surface of the circular column to restrict the connecting column and prevent it from deflecting.

[0010] As a preferred technical solution, the detachable connector includes six sets of limiting holes formed on the outer circular surface of each set of limiting rings. The six sets of limiting holes on the same side are arranged in a circular array and are aligned with the ends of the corresponding side cross-shaped plates. Each set of limiting holes has a fixing bolt inserted into its inner cavity. Each set of fixing bolts passes downward through the corresponding side limiting hole and is threaded to the corresponding side end of the cross-shaped plate.

[0011] As a preferred technical solution, the anti-deviation component includes limiting holes opened at the top of the upper and lower sides of the circular column. The inner cavities of the two sets of limiting holes are threaded with fixing screws, and the ends of the two sets of fixing screws abut against the corresponding side surfaces of the connecting column.

[0012] As a preferred technical solution, a wear-resistant layer is provided on the opposite side of both sets of limiting rings.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of limiting rings at both ends, can laterally limit the rebar, preventing it from coming out from the side during straightening, ensuring that the rebar moves along the predetermined path, and improving the stability and accuracy of straightening. The upper part of the limiting ring at one end is set at a chamfer, which facilitates the smooth introduction of the rebar into the limiting ring, reduces the obstruction during the introduction of the rebar, and improves the convenience of operation.

[0015] 2. This utility model adjusts the spacing between the two sets of lower limit rings by adjusting the component settings. As needed, the cross-shaped plate is pushed inward along the cross-shaped groove, thereby adapting to different types of steel bars and improving the versatility of the device. Furthermore, the cooperation between the cross-shaped groove and the cross-shaped plate provides a stable guide for the movement of the limit rings, ensuring that the limit rings will not deviate or shake during the adjustment process, thus guaranteeing adjustment accuracy. At the same time, the cross-shaped structure increases the contact area, which can withstand greater forces, making the limit rings more secure after fixing and less prone to displacement due to the forces exerted during steel bar straightening.

[0016] 3. Through the setting of the drive component, the rotating connecting column can realize the synchronous reverse movement of two sets of cross-shaped plates, which can accurately and conveniently adjust the distance between the limit rings. The operation is simple and the adjustment effect is stable. Furthermore, the hexagonal groove at the end of the threaded rod makes it easy to use a common hex wrench as a tool for adjustment without the need for special tools, thus reducing the operating threshold. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an automatic straightening auxiliary roller for steel trusses according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the circular column of this utility model.

[0019] Figure 3 This is a cross-sectional view of the limiting ring of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-shaped groove of this utility model.

[0021] In the picture:

[0022] 100. Circular column; 101. Star-shaped groove; 103. Limiting ring; 104. Limiting hole; 105. Fixing bolt; 106. Connecting shaft; 107. Fixing screw; 108. Wear-resistant layer;

[0023] 200. Threaded rod; 201. Hexagonal groove; 202. Nut seat; 203. Connecting post; 204. Cross-shaped plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4This embodiment provides an automatic straightening auxiliary roller for steel trusses, including a circular column 100. Both ends of the circular column 100 are fitted with limiting rings 103 for limiting the steel bars. The upper parts of the opposite ends of the two sets of limiting rings 103 are set at a chamfered angle. An adjustment component is provided inside the circular column 100 for adjusting the distance between the two sets of limiting rings 103 to accommodate different types of steel bars. A connecting shaft 106 for connecting to the output end of the main body of the steel bar straightening machine is fixedly connected to one end of the circular column 100. The limiting rings 103 at both ends allow for lateral limiting of the steel bars, preventing them from coming off the side during straightening, ensuring the steel bars move along a predetermined path, and improving the stability and accuracy of straightening. The chamfered angle at the upper parts of the opposite ends of the limiting rings 103 facilitates the smooth introduction of the steel bars into the limiting rings 103, reducing obstruction during steel bar introduction and improving operational convenience.

[0026] The main body of the rebar straightening machine is a well-known technical means in the art. For its specific working principle and structure, please refer to the main body of the rebar straightening machine in the rebar feeding and straightening device of a rebar truss machine with publication number CN215199421U. The rest will not be described in detail here.

[0027] The adjustment assembly includes two sets of star-shaped grooves 101 at both ends of the circular column 100. The two sets of star-shaped grooves 101 are arranged along the height of the circular column 100. Star-shaped plates 204 are slidably connected to the inner cavities of both sets of star-shaped grooves 101. Two sets of limiting rings 103 are connected to the corresponding side star-shaped plates 204 via detachable connectors. The inner cavity of the circular groove is equipped with a drive assembly that simultaneously drives the two sets of star-shaped plates 204 to move inward. By adjusting the assembly, the star-shaped plates are pushed inward along the star-shaped grooves 101 as needed. 204, thereby adjusting the spacing between the two sets of lower limit rings 103 to adapt to different types of steel bars, improving the versatility of the device. Furthermore, the cooperation between the star-shaped groove 101 and the star-shaped plate 204 provides a stable guide for the movement of the limit ring 103, ensuring that the limit ring 103 will not shift or shake during the adjustment process, thus guaranteeing the adjustment accuracy. At the same time, the star-shaped structure increases the contact area, which can withstand greater forces, making the limit ring 103 more secure after fixing and less prone to displacement due to the force during steel bar straightening.

[0028] The drive assembly includes a connecting post 203 rotatably inserted into the middle of the circular post 100. Both ends of the two sets of connecting posts 203 are fixedly connected to threaded rods 200, with the threads of the two sets of threaded rods 200 arranged in opposite directions. Corresponding nut seats 202 are threadedly connected to the surfaces of the two sets of threaded rods 200, and the two sets of nut seats 202 are fixedly inserted into the middle of the corresponding side cross-shaped plates 204. Hexagonal grooves 201 are provided at the opposite ends of the two sets of threaded rods 200. An anti-deviation component is provided on the surface of the circular post 100 to restrict the connecting posts 203 and prevent them from deflecting. Through the drive assembly, rotating the connecting post 203 enables the synchronous reverse movement of the two sets of cross-shaped plates 204, allowing for precise and convenient adjustment of the spacing between the limit rings 103. The operation is simple and the adjustment effect is stable. Furthermore, the hexagonal grooves 201 at the ends of the threaded rods 200 facilitate adjustment using common hex wrenches, eliminating the need for special tools and lowering the operational threshold.

[0029] The detachable connector includes six sets of limiting holes 104 on the outer surface of each set of limiting rings 103. The six sets of limiting holes 104 on the same side are arranged in a circular array and are aligned with the ends of the corresponding side cross-shaped plates 204. Each set of limiting holes 104 has a fixing bolt 105 inserted into its inner cavity. Each set of fixing bolts 105 passes through the corresponding side limiting hole 104 and is threaded to the corresponding side end of the cross-shaped plate 204. With the detachable connector, the fixing bolts 105 are firmly and reliably connected, which can stably fix the limiting rings 103 on the cross-shaped plates 204, so that the limiting rings 103 can effectively play a limiting role during the straightening of the reinforcing bars and will not loosen.

[0030] The anti-deviation component includes limiting holes 104 on the top of the upper and lower sides of the circular column 100. The inner cavities of the two sets of limiting holes 104 are threaded with fixing screws 107. The ends of the two sets of fixing screws 107 respectively abut against the corresponding side surfaces of the connecting column 203. By setting the anti-deviation component, tightening the fixing screws 107 will cause the ends of the fixing screws 107 to abut against the surfaces of the connecting column 203, thereby effectively limiting the rotation of the connecting column 203, ensuring the stability of the drive component, and ensuring that the spacing of the limiting rings 103 remains unchanged after adjustment, thus providing stable limiting conditions for straightening the reinforcing bars.

[0031] Among them, wear-resistant layers 108 are provided on the opposite side of the two sets of limiting rings 103. By setting the wear-resistant layers 108, the wear-resistant layers 108 can effectively reduce the friction loss between the limiting rings 103 and the reinforcing bars, extend the service life of the limiting rings 103, and reduce equipment maintenance costs.

[0032] The wear-resistant layer 108 is one or more of the following materials: hard alloy, wear-resistant rubber, high-hardness plastic, etc.

[0033] Working principle;

[0034] First, connect the connecting shaft 106 to the output end of the main body of the rebar straightening machine to ensure a firm connection so that the device can work properly with the rebar straightening machine.

[0035] Subsequently, locate the hexagonal slot 201 at the end of the connecting column 203, insert the corresponding hexagonal wrench into the hexagonal slot 201, and rotate the hexagonal wrench to drive the connecting column 203 to rotate. Since the threads of the threaded rods 200 at both ends of the connecting column 203 are opposite, and the threaded rods 200 are respectively threadedly connected to the nut seat 202, and the nut seat 202 is fixed on the star-shaped plate 204, when the connecting column 203 rotates, it will drive the two sets of star-shaped plates 204 to move inward or outward at the same time. According to the type of steel bar used, adjust the position of the star-shaped plate 204 so that the spacing between the two sets of limiting rings 103 is adapted to the diameter of the steel bar, providing a suitable limiting space for the steel bar.

[0036] After adjustment, observe the limiting holes 104 on the top of the upper and lower sides of the circular column 100, screw the fixing screw 107 into the limiting hole 104, so that the end of the fixing screw 107 abuts against the surface of the connecting column 203 to prevent the connecting column 203 from deflecting and fix the adjusted spacing.

[0037] At this point, the limiting ring 103 is fitted onto both ends of the circular column 100, so that the limiting hole 104 on the outer circular surface of the limiting ring 103 is aligned with the end of the star-shaped plate 204. The fixing bolt 105 is taken out, inserted into the limiting hole 104, and then threaded down through the limiting hole 104 to connect with the star-shaped plate 204. By tightening the fixing bolt 105, the limiting ring 103 is firmly installed on the star-shaped plate 204.

[0038] Then, the rebar straightening machine is turned on, and the rebar to be straightened is passed through the space between the two limiting rings 103 and enters the main body of the rebar straightening machine along the axial direction of the circular column 100. The limiting rings 103 are used to limit the rebar laterally to ensure that the rebar stays on the correct path during the straightening process.

[0039] Meanwhile, the wear-resistant layer 108 on the inner side of the limiting ring 103 can reduce wear caused by friction with the steel bar, ensuring the service life and limiting effect of the limiting ring 103.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforcing bar truss automatic straightening auxiliary roller characterized by, The device includes a circular column (100), both ends of which are fitted with limiting rings (103) for limiting the position of the reinforcing bars. The upper part of the opposite end of the two sets of limiting rings (103) is set at a chamfer. The inside of the circular column (100) is provided with an adjustment component for adjusting the distance between the two sets of limiting rings (103) to adapt to different types of reinforcing bars. A connecting shaft (106) for connecting to the output end of the main body of the reinforcing bar straightening machine is fixedly connected to one end of the circular column (100).

2. The automatic straightening auxiliary roller for steel bar truss according to claim 1, characterized in that: The adjustment assembly includes a star-shaped groove (101) at both ends of the circular column (100). The two sets of star-shaped grooves (101) are set along the height of the circular column (100). The inner cavity of the two sets of star-shaped grooves (101) is slidably connected with a star-shaped plate (204). The two sets of limiting rings (103) are respectively connected to the corresponding side star-shaped plate (204) through detachable connectors. The inner cavity of the circular groove is provided with a driving assembly that simultaneously drives the two sets of star-shaped plates (204) to move inward.

3. A reinforcing bar truss automatic straightening auxiliary roller according to claim 2, characterized in that: The drive assembly includes a connecting column (203) rotatably inserted into the middle of the circular column (100). Both ends of the two sets of connecting columns (203) are fixedly connected with threaded rods (200). The threads of the two sets of threaded rods (200) are arranged in opposite directions. The surfaces of the two sets of threaded rods (200) are respectively threaded with corresponding nut seats (202). The two sets of nut seats (202) are respectively fixedly inserted into the middle of the corresponding side cross-shaped plate (204). The opposite ends of the two sets of threaded rods (200) are provided with hexagonal grooves (201). The surface of the circular column (100) is provided with an anti-deviation component for restricting the connecting column (203) and preventing the connecting column (203) from deflecting.

4. The automatic straightening auxiliary roller for steel bar truss according to claim 2, characterized in that: The detachable connector includes six sets of limiting holes (104) on the outer surface of each set of limiting rings (103). The six sets of limiting holes (104) on the same side are arranged in a ring array and are aligned with the ends of the corresponding side cross-shaped plates (204). Each set of limiting holes (104) has a fixing bolt (105) inserted into its inner cavity. Each set of fixing bolts (105) passes through the corresponding side limiting hole (104) and is threaded to the corresponding side end of the cross-shaped plate (204).

5. The automatic straightening auxiliary roller for steel trusses according to claim 3, characterized in that: The anti-deviation component includes limiting holes (104) opened on the top of the upper and lower sides of the circular column (100). The inner cavities of the two sets of limiting holes (104) are threaded with fixing screws (107), and the ends of the two sets of fixing screws (107) respectively abut against the corresponding side surfaces of the connecting column (203).

6. A reinforcing truss automatic straightening auxiliary roller according to any one of claims 1-5, characterized in that: The two sets of limiting rings (103) are provided with a wear-resistant layer (108) on opposite sides.

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