Steel bar straightening machine for concrete pole

Abstract

The utility model discloses a reinforcing steel bar straightening machine for concrete poles, which relates to the technical field of concrete pole processing, and comprises an unwinding device and a straightening machine arranged behind the unwinding device, the unwinding device comprises a variable-diameter reinforcing steel bar roll support and a base supporting the reinforcing steel bar roll support to rotate, the driving mechanism is arranged on the base and used for driving the steel bar roll support to rotate, and the electric rod is arranged on the base and used for driving the steel bar roll support to change the diameter. The unrolling device is additionally arranged on the straightening machine, the unrolling device is used for synchronizing with a traction mechanism of the straightening machine, gradual unrolling is achieved, and meanwhile, the situations of winding, knotting and disorderly moving of reinforcing steel bars are restrained. The unwinding device fixedly supports a rebar coil through a rebar coil support, drives the rebar coil support to rotate through a servo motor, and releases rebars synchronously with the traction mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of rebar straightening technology, specifically relating to a rebar straightening machine for concrete utility poles. Background Technology

[0002] The axial reinforcement bars of concrete utility poles are required to be straight; however, the original reinforcement bars are usually bundled and coiled. Therefore, during processing, these bars must first be straightened using a straightening machine, while removing rust from their surface, and then cut to the required length. The resulting reinforcement bars have suitable lengths and smooth surfaces, making them suitable for manufacturing the reinforcement cages of concrete utility poles.

[0003] In current processing techniques, workers typically unroll the rebar coils and lay them flat on the ground, then insert the ends of the rebars into the traction device of a straightening machine. Under the action of the traction device, the rebar coils are gradually unrolled and straightened. However, in actual operation, the rebar coils sometimes become entangled during the unrolling process, leading to knots. Furthermore, the ends of the rebars may move erratically when releasing stress, increasing the risk of accidents. Utility Model Content

[0004] In order to overcome the problems existing in the background art, this utility model provides a steel bar straightening machine for concrete poles.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a steel bar straightening machine for concrete poles, comprising: an unwinding device, a straightening machine disposed after the unwinding device, the unwinding device comprising: a variable diameter steel bar roll support, a base supporting the rotation of the steel bar roll support, a drive mechanism disposed on the base for driving the rotation of the steel bar roll support, and an electric pole disposed on the base for driving the variable diameter of the steel bar roll support.

[0006] Preferably, the base includes: a first support seat, a second support seat disposed parallel above the first support seat, and a support column provided between the first support seat and the second support seat.

[0007] Preferably, the rebar coil support includes: a support plate rotatably connected to the second support seat, a vertical shaft tube disposed at the center of the support plate, a plurality of sleeves arranged in two concentric circles on the side wall of the shaft tube, an arc-shaped plate with the same number of sleeves as the single circle and arranged in a concentric circle around the shaft tube, and two support shafts that slide and are inserted into the sleeves respectively on the arc-shaped plate.

[0008] Preferably, the sleeve sidewall is provided with a first through groove, the shaft tube is provided with a second through groove corresponding to the first through groove in an axial direction, a movable shaft is slidably provided inside the shaft tube, a connecting rod is hinged to the sidewall of the movable shaft, the connecting rod passes through the second through groove, and the other end of the connecting rod passes through the second through groove and is hinged to the support shaft; the electric rod is provided on the second support seat, and the lower end of the movable shaft is provided with a rotating connector connected to the piston rod of the electric rod.

[0009] Preferably, the shaft tube is fixed to and passes through the support disk, and the shaft tube rotatably passes through the second support seat; the driving mechanism includes: a support plate disposed on the support column, a servo motor disposed on the support plate, a reducer disposed on the servo motor, a transmission shaft connected to the output shaft of the reducer, a first bevel gear disposed on the transmission shaft, a second bevel gear disposed on the shaft tube and meshing with the first bevel gear, and a rotary support bearing connecting the second support seat and the support disk.

[0010] The beneficial effects of this utility model are:

[0011] Compared with existing technologies, this utility model adds an unwinding device to the straightening machine. This unwinding device synchronizes with the straightening machine's traction mechanism, achieving gradual unwinding while simultaneously restraining the reinforcing bars to reduce tangling, knotting, and random movement. The unwinding device uses a reinforcing bar coil support to fix and support the reinforcing bar coil, and a servo motor drives the support to rotate, releasing the reinforcing bar synchronously with the traction mechanism. Attached Figure Description

[0012] Figure 1 A schematic diagram of a steel bar straightening machine for concrete utility poles;

[0013] Figure 2 This is a side view of the unwinding device.

[0014] Figure 3 This is a cross-sectional view of the unwinding device.

[0015] Figure 4 This is a schematic diagram of the shaft tube structure.

[0016] In the diagram: 1. Unwinding device; 2. Straightening machine; 3. Rebar coil support; 4. Base; 5. Electric rod; 6. First support seat; 7. Second support seat; 8. Support column; 9. Support plate; 10. Shaft tube; 11. Sleeve; 12. Arc plate; 13. Support shaft; 14. First through slot; 15. Second through slot; 16. Movable shaft; 17. Connecting rod; 18. Rotary connector; 19. Piston rod; 20. Support plate; 21. Servo motor; 22. Reducer; 23. Transmission shaft; 24. First bevel gear; 25. Second bevel gear; 26. Rotary support bearing. Detailed Implementation

[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below to facilitate understanding by those skilled in the art.

[0018] Please see Figures 1 to 4 This utility model provides a rebar straightening machine for concrete utility poles, comprising: an unwinding device 1, and a straightening machine 2 disposed after the unwinding device 1. The unwinding device 1 includes: a rebar coil support 3 with variable diameter, a base 4 supporting the rotation of the rebar coil support 3, a drive mechanism disposed on the base 4 for driving the rotation of the rebar coil support 3, and an electric pole 5 disposed on the base 4 for driving the rebar coil support 3 to change diameter. By adding the unwinding device 1 to the straightening machine 2, and using the unwinding device 1 to synchronize with the traction mechanism of the straightening machine 2, gradual unwinding is achieved, while simultaneously constraining the rebar to reduce tangling, knotting, and random movement.

[0019] The base 4 includes: a first support 6, a second support 7 disposed parallel above the first support 6, and a support column 8 between the first support 6 and the second support 7.

[0020] The rebar coil support 3 includes: a support disk 9 rotatably connected to the second support base 7; a vertical shaft tube 10 located at the center of the support disk 9; several sleeves 11 arranged in two concentric circles on the sidewalls of the shaft tube 10; and an arc-shaped plate 12, with the same number of sleeves 11 as a single circle and arranged in a concentric circle around the shaft tube 10. Two radially arranged support shafts 13 on the arc-shaped plate 12 are inserted into the sleeves 11. The support disk 9 is placed horizontally, and the rebar coil is sleeved on the shaft tube 10, including all the arc-shaped plates 12. The diameter of the rebar coil support 3 is adjusted by changing the connection distance between the support shafts 13 and the sleeves 11.

[0021] The sleeve 11 has a first through groove 14 on its side wall, and the shaft tube 10 has a second through groove 15 axially corresponding to the first through groove 14. A movable shaft 16 is slidably provided inside the shaft tube 10. A connecting rod 17 is hinged to the side wall of the movable shaft 16. The connecting rod 17 passes through the second through groove 15, and the other end of the connecting rod 17 passes through the second through groove 15 and is hinged to the support shaft 13. The electric rod 5 is provided on the second support seat 7. The lower end of the movable shaft 16 has a rotating connector 18 connected to the piston rod 19 of the electric rod 5. The connecting part of the connecting rod 17, the support shaft 13, and the movable shaft 16 forms a tripod. The electric rod 5 pushes the movable shaft 16 to move upward, which drives the connecting rod 17 to push the support shaft 13 to move outward from the sleeve 11, thereby moving the arc plate 12 away from the shaft tube 10, causing the diameter of the rebar coil support 3 to expand; conversely. The electric rod 5 pulls the movable shaft 16 downwards, causing the connecting rod 17 to push the support shaft 13 into the sleeve 11, thereby bringing the arc plate 12 closer to the shaft tube 10, causing the diameter of the rebar coil support 3 to shrink. The rotating connector 18 can push and pull the movable shaft 16 when the electric rod 5 is fixed and does not rotate, but the rebar coil support 3 can rotate.

[0022] The shaft tube 10 is fixed to and passes through the support plate 9, and the shaft tube 10 rotatably passes through the second support seat 7. The driving mechanism includes: a support plate 20 on the support column 8, a servo motor 21 on the support plate 20, a reducer 22 on the servo motor 21, a transmission shaft 23 connected to the output shaft of the reducer 22, a first bevel gear 24 on the transmission shaft 23, a second bevel gear 25 on the shaft tube 10 and meshing with the first bevel gear 24, and a rotary support bearing 26 connecting the second support seat 7 and the support plate 9. The servo motor 21 is equipped with a servo motor 21 control module, which controls the speed of the servo motor 21 through voltage control. The servo motor 21 drives the reducer 22, the reducer 22 drives the transmission shaft 23, the transmission shaft 23 drives the first bevel gear 24, the first bevel gear 24 drives the second bevel gear 25, the second bevel gear 25 drives the shaft tube 10, and the shaft tube 10 drives the entire rebar coil support 3 to rotate.

[0023] When using the steel bar straightening machine for concrete utility poles according to this utility model:

[0024] First, control the electric rod 5 to retract the diameter of the rebar coil support 3, placing the rebar coil onto the support 3. Then, control the electric rod 5 to expand the diameter of the support 3, securing the rebar coil. Unwind the rebar coil and connect the rebar end to the traction mechanism of the straightening machine 2. Set the unwinding speed of the unwinding device 1 according to the running speed of the straightening machine 2. Simultaneously start the straightening machine 2 and the unwinding device 1. The straightening machine 2 in this embodiment is existing technology. Besides the traction module, the straightening module should also include a rust removal module and a cutting module, all of which are existing technologies and will not be described in detail in this embodiment.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A steel bar straightening machine for concrete utility poles, comprising: An unwinding device (1) and a straightening machine (2) disposed after the unwinding device (1) are characterized in that the unwinding device (1) includes: a variable diameter steel coil support (3), a base (4) supporting the rotation of the steel coil support (3), a drive mechanism disposed on the base (4) for driving the rotation of the steel coil support (3), and an electric rod (5) disposed on the base (4) for driving the steel coil support (3) to change diameter.

2. The steel bar straightening machine for concrete utility poles according to claim 1, characterized in that: The base (4) includes: a first support seat (6), a second support seat (7) disposed parallel above the first support seat (6), and a support column (8) between the first support seat (6) and the second support seat (7).

3. A steel bar straightening machine for concrete utility poles according to claim 2, characterized in that: The steel bar coil support (3) includes: a support plate (9) rotatably connected to the second support base (7), a vertical shaft tube (10) located at the center of the support plate (9), a number of sleeves (11) arranged in two circles on the side wall of the shaft tube (10), an arc plate (12) arranged in a circle around the shaft tube (10) with the same number of sleeves (11) as the single circle, and two radially arranged support shafts (13) that slide into the sleeves (11).

4. A steel bar straightening machine for concrete utility poles according to claim 3, characterized in that: The sleeve (11) has a first through groove (14) on its side wall. The shaft tube (10) has a second through groove (15) that corresponds one-to-one with the first through groove (14) on its axial direction. The shaft tube (10) has a movable shaft (16) that slides inside it. The movable shaft (16) has a connecting rod (17) that is hinged to its side wall. The connecting rod (17) passes through the second through groove (15). The other end of the connecting rod (17) passes through the second through groove (15) and is hinged to the support shaft (13). The electric rod (5) is mounted on the second support seat (7). The lower end of the movable shaft (16) has a rotating connector (18) that is connected to the piston rod (19) of the electric rod (5).

5. A steel bar straightening machine for concrete utility poles according to claim 4, characterized in that: The shaft tube (10) is fixed to the support plate (9) and passes through the support plate (9). The shaft tube (10) rotatably passes through the second support seat (7). The driving mechanism includes: a support plate (20) on the support column (8), a servo motor (21) on the support plate (20), a reducer (22) on the servo motor (21), a transmission shaft (23) connected to the output shaft of the reducer (22), a first bevel gear (24) on the transmission shaft (23), a second bevel gear (25) on the shaft tube (10) and meshing with the first bevel gear (24), and a rotary support bearing (26) connecting the second support seat (7) and the support plate (9).

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