Reinforcing steel bar straightening machine
By introducing V-shaped straightening grooves and adjustment components into the steel bar straightening machine to adjust the straightening roller angle, the problems of inconvenient adjustment of the straightening roller and uneven extrusion pressure in the prior art are solved, and efficient straightening and stability of steel bars of different diameters are achieved.
Patent Information
- Application Number
- CN202421928043.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The adjustment of the straightening rollers of existing steel bar straightening machines is inconvenient, which affects the straightening effect of steel bars. The adjustment spacing between different straightening roller groups is inconsistent, resulting in uneven steel bar squeeze pressure.
A steel bar straightening machine is designed, using a V-shaped opening straightening groove to cooperate with the straightening roller. The angle of the straightening roller is adjusted by adjusting the components, and the driving mechanism and torque sensor are used to achieve adaptive straightening to steel bars of different diameters. Combined with the use of the traction assembly and protective cover, the steel bars are ensured to be stable straightened.
Efficient straightening of steel bars of different diameters is achieved, the straightening effect and stability of steel bars are improved, and the problems of low adjustment efficiency and uneven extrusion pressure are avoided.
Smart Images
Figure CN223171810U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel bar straightening, and particularly to a steel bar straightening machine. Background Art
[0002] With the continuous development of construction projects, steel bars have become an indispensable part of the concrete skeleton; in order to facilitate transportation, steel bars are usually made into coils; when the steel bars are transported to the construction site, the coiled steel bars need to be straightened and cut into appropriate lengths for the binding of the steel bar skeleton.
[0003] When the steel bar is adjusted from the coiled state to the straight state, a steel bar straightening machine is needed; in the conventional steel bar straightening machine during the straightening operation of the steel bar, the coiled steel bar enters from the feeding pipe orifice at one end of the straightening frame, and after being extruded by the straightening rollers inside the straightening frame, it passes through the discharging pipe orifice at the end of the straightening frame and moves backward under the traction of the traction assembly. At this time, the driving mechanism drives the straightening frame to rotate at a high speed, and the straightening rollers roll around the steel bar, straightening the steel bar while removing the internal stress of the steel bar to prevent the steel bar from returning to the bent state after passing through the straightening frame.
[0004] The straightening rollers of the ordinary straightening machine are fixedly installed on the straightening frame, and the gap between the upper and lower straightening rollers cannot be adapted to steel bars of any diameter, resulting in limitations on the diameter of the straightened steel bars. After the ordinary steel bar straightening machine is improved, a gap adjusting mechanism is added, and by using this mechanism, the straightening rollers on the opposite sides can move in opposite directions to change the vertical gap between the straightening rollers on the opposite sides, so as to be applicable to different diameters of steel bars; however, due to the large number of straightening rollers in the straightening frame, there will be too many gap adjusting mechanisms, which will affect the adjustment efficiency of the straightening rollers on the opposite sides, and the adjustment distances between different straightening roller groups will also be inconsistent, resulting in inconsistent extrusion forces on the steel bars and affecting the straightening effect of the steel bars.
[0005] Therefore, how to design a steel bar straightening machine that is convenient for adjusting the straightening rollers has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model
[0006] In order to solve at least one technical problem mentioned in the background art, the purpose of the utility model is to provide a steel bar straightening machine to solve the problems that the existing straightening rollers are inconvenient to adjust and affect the straightening effect of the steel bars.
[0007] To achieve the above purpose, the utility model provides the following technical solutions:
[0008] A steel bar straightening machine includes a frame, on which a straightening frame is rotatably provided and a driving mechanism for driving the straightening frame to rotate at high speed. Feed pipe openings and discharge pipe openings for the steel bars to pass through are respectively provided on both side walls of the straightening frame. A traction assembly is also provided on the frame at the end of the discharge pipe opening. A number of groups of straightening assemblies are provided on the inner wall of the straightening frame and are distributed along the length direction of the steel bar. Straightening rollers are provided on the straightening assemblies. A straightening groove with a V-shaped opening is provided on the circumferential wall of the straightening roller, and the side wall of the straightening groove abuts against the circumferential wall of the steel bar. An adjusting assembly is further included for adjusting the straightening assembly to rotate by an angle.
[0009] Further, the straightening assembly further includes a rotating shaft, a positioning seat and a positioning shaft. The straightening roller is rotatably connected to the positioning seat through the positioning shaft, the rotating shaft is fixedly connected to the positioning seat, and the rotating shaft is rotatably connected to the straightening frame.
[0010] Further, the adjusting assembly includes a first motor, a worm and a worm gear. The worm gear is fixedly connected to the rotating shaft. The first motor is fixedly installed on the straightening frame. The output shaft of the first motor is fixedly connected to the worm, and the worm meshes with the worm gear.
[0011] Further, a torque sensor and a central control unit are further included. One end of the torque sensor is fixedly connected to the rotating shaft, the other end of the torque sensor is fixedly connected to the positioning seat, and both the torque sensor and the first motor are electrically connected to the central control unit.
[0012] Further, the first motor is a stepping motor.
[0013] Further, two groups of limit retaining rings are fixedly provided on the circumferential wall of the rotating shaft. The limit retaining rings are located on both sides of the straightening frame and clamp the straightening frame, and the end wall of the limit retaining ring abuts against the straightening frame.
[0014] Further, a support seat is fixedly installed on the frame, and both the feed pipe opening and the discharge pipe opening on the straightening frame are connected to the support seat through bearings.
[0015] Further, the driving mechanism includes a second motor, a pulley set and a transmission belt. The second motor is fixedly installed on the frame. One of the pulleys of the pulley set is fixedly installed on the feed pipe opening or the discharge pipe opening, the other pulley of the pulley set is fixedly installed on the output shaft of the second motor, and the transmission belt is sleeved on the outside of the two pulleys.
[0016] Further, a protective cover is also rotatably installed on the frame, and the straightening frame is covered under the protective cover.
[0017] Further, the traction assembly includes a positioning wheel, a clamping wheel and a gap adjusting handle. The positioning wheel is rotatably installed on the frame. The clamping wheel is slidably connected to the frame along the radial direction of the positioning wheel. The gap adjusting handle is used to adjust the position of the clamping wheel. A motor for driving the positioning wheel or the clamping wheel to rotate is also included.
[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: The steel bar is inserted into the straightening frame through the feeding pipe orifice, passes through the discharging pipe orifice, and is sent into the traction assembly. The traction assembly is used to move the steel bar, facilitating continuous straightening of the steel bar. The driving mechanism drives the straightening frame to rotate around the axis of the steel bar, and the straightening grooves of the straightening rollers are in contact with the circumferential wall of the steel bar, thereby achieving straightening of the steel bar and removing the internal stress of the steel bar.
[0019] The adjusting assembly drives the straightening rollers to rotate, thereby changing the angle between the axis of the straightening rollers and the axis of the steel bar. Since the straightening grooves are V-shaped and the side walls are in contact with the circumferential wall of the steel bar, different diameters of steel bars can be processed as the angle of the straightening rollers changes, facilitating adjustment of the straightening machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0021] Figure 2 is a front view of the present utility model;
[0022] Figure 3 is a schematic diagram of the internal structure of the present utility model;
[0023] Figure 4 is a schematic diagram of the steel bar straightening principle of the present utility model;
[0024] Figure 5 is a schematic diagram of the angle adjustment of the straightening assembly;
[0025] Figure 6 is a cross-section view of the straightening assembly of the present utility model.
[0026] In the figures: 1, frame; 10, protective cover; 11, support seat; 21, straightening frame; 211, feeding pipe orifice; 212, discharging pipe orifice; 3, straightening assembly; 31, rotating shaft; 311, limit retaining ring; 32, positioning seat; 33, positioning shaft; 34, straightening roller; 341, straightening groove; 4, adjusting assembly; 41, first motor; 42, worm; 43, worm gear; 44, supporting seat; 5, torque sensor; 6, steel bar; 71, second motor; 72, pulley set; 73, transmission belt; 8, traction assembly; 81, positioning wheel; 82, clamping wheel; 83, gap adjusting handle; 9, guiding seat. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0028] This embodiment provides a steel bar straightening machine, which facilitates the adjustment of the straightening rollers in the straightening frame, expands the range of the straightening diameter of the steel bars, and improves the straightening effect of the steel bars.
[0029] As Figure 1 , Figure 2 and Figure 3 shown, it includes a frame 1, on which a straightening frame 21 is rotatably provided and a driving mechanism for driving the straightening frame 21 to rotate at a high speed. Feeding pipe openings 211 and discharging pipe openings 212 for the steel bars 6 to pass through are respectively provided on both side walls of the straightening frame 21. Among them, the feeding pipe opening 211 and the discharging pipe opening 212 are aligned. A traction assembly 8 is further provided on the frame 1 at the end of the discharging pipe opening 212 and a guiding seat 9 for the straightened steel bars 6 to pass through. A plurality of groups of straightening rollers 34 are provided on the inner wall of the straightening frame 21. A straightening groove 341 with a V-shaped opening is provided on the peripheral wall of the straightening roller 34, and the side wall of the straightening groove 341 abuts against the peripheral wall of the steel bar 6. It further includes an adjusting assembly 4 for adjusting the rotation angle of the straightening roller 34.
[0030] Through the above settings, when the steel bar 6 passes through the inside of the straightening frame 21 and abuts against the inner wall of the straightening groove 341 of the straightening roller 34 in sequence and then passes out from the discharging pipe opening 212 of the straightening frame 21, the traction assembly 8 can drive the steel bar 6 to continuously move backward; at the same time, the driving mechanism drives the straightening frame 21 to rotate at a high speed. As Figure 4 And shown, the straightening frame 21 and the straightening roller 34 can rotate around the axis of the steel bar 6, and by using the pushing of the inner wall of the straightening groove 341 on the straightening roller 34 against the peripheral wall of the steel bar 6, the steel bar 6 can be straightened and the residual stress inside the steel bar 6 can be removed.
[0031] When the diameter of the steel bar 6 changes, it is necessary to change the position of the straightening roller 34 to adapt to the change in the diameter of the steel bar 6. Under normal circumstances, in this embodiment, as Figure 4 shown, at this time, the adjusting assembly 4 is used to drive the straightening roller 34 to rotate, changing the included angle between the axis of the straightening roller 34 and the projection of the axis of the steel bar 6. Since the straightening groove 341 is V-shaped, the two side walls of the straightening groove 341 will be relatively displaced. When the included angle between the axis of the straightening roller 34 and the projection of the axis of the steel bar 6 gradually decreases between 0° and 90°, the dislocation of the inner wall of the straightening groove 341 is greater, and the steel bar 6 moves away from the tip position of the straightening groove 341. At this time, a relatively thin steel bar 6 can be clamped. When the included angle is larger, the steel bar 6 can move closer to the tip position of the straightening groove 341, so as to be able to clamp the steel bar 6 with a large diameter. By changing the angle of the straightening roller 34, the clamping of the steel bar 6 can be adaptively changed.
[0032] In order to realize the installation of the straightening frame 21, in this embodiment, as Figure 1 and Figure 2As shown, a support base 11 is fixedly installed on the frame 1. Among them, both the feed pipe orifice 211 and the discharge pipe orifice 212 are connected to the support base 11 through bearings, so that the straightening frame 21 can be rotated.
[0033] In this embodiment, as Figure 3 shown, the straightening frame 21 is in the shape of a cuboid. The straightening frame 21 has a middle hole inside and both side walls penetrate. It should be noted here that the two penetrating side walls at this time are the side walls perpendicular to the steel bar 6. Taking the direction in Figure 3 as a reference, a plurality of groups of straightening assemblies 3 are provided on both the bottom wall and the top wall of the straightening frame 21. Among them, the straightening roller 34 is one of the components of the straightening assembly 3. Specifically, three groups of straightening assemblies 3 are provided on the top wall of the straightening frame 21 along the length direction of the steel bar 6, and two groups of straightening assemblies 3 are provided on the bottom wall of the straightening frame 21 along the length direction of the steel bar 6. Among them, the lower straightening assembly 3 and the upper straightening assembly 3 are offset from each other, and different adjusting assemblies 4 are used to adjust the angles of the straightening assemblies 3 of the upper straightening assembly 3 and the lower straightening assembly 3 respectively.
[0034] In order to realize the installation of the straightening roller 34, in this embodiment, as Figure 4 and Figure 5 shown, the straightening assembly 3 further includes a rotating shaft 31, a positioning seat 32 and a positioning shaft 33. Among them, the cross section of the positioning seat 32 is U-shaped, and the straightening roller 34 is rotatably installed on the positioning seat 32 through the positioning shaft 33, and the rotating shaft 31 is rotatably installed on the straightening frame 21.
[0035] In order to improve the stability of the installation of the rotating shaft 31 and prevent the rotating shaft 31 from moving along the direction perpendicular to the steel bar 6, in this embodiment, as Figure 6 shown, two groups of limit retaining rings 311 are fixedly provided on the rotating shaft 31. Among them, the limit retaining rings 311 are used to clamp the wall thickness of the straightening frame 21 to prevent the movement of the rotating shaft 31.
[0036] In order to be able to adjust the angle of the straightening roller 34, in this embodiment, as Figure 3 and Figure 5 shown, the adjusting assembly 4 includes a first motor 41, a worm 42 and a worm gear 43. The first motor 41 is fixedly installed on the straightening frame 21, the output shaft of the first motor 41 is fixedly connected to the worm 42, and the worm gear 43 is fixedly installed on the rotating shaft 31, and the worm 42 meshes with the worm gear 43 on the rotating shaft 31.
[0037] It should be noted here that the adjusting assembly 4 corresponding to the upper straightening assembly 3 and the adjusting assembly 4 corresponding to the lower straightening assembly 3 are symmetrical about the axis of the steel bar 6, so that the overall center of gravity of the straightening frame 21 can coincide with the axis of the steel bar 6, and the stability of the straightening frame 21 during rotation can be improved.
[0038] Selecting the worm and worm gear for the adjusting assembly 4 can achieve self-locking of the rotating shaft 31, preventing the rotation angles of the rotating shaft 31 and the straightening roller 34 from changing during the straightening process of the steel bar 6.
[0039] In this embodiment, as Figure 1 shown, a protective cover 10 is further installed on the frame 1. The protective cover 10 is used to cover the straightening frame 21 to prevent the rotation of the straightening frame 21 from accidentally injuring the operators during the processing.
[0040] In order to support the worm 42, in this embodiment, as Figure 5 shown, the adjusting assembly 4 further includes a supporting seat 44. Among them, the supporting seat 44 is fixedly installed on the straightening frame 21, and the worm 42 is rotatably connected to the supporting seat 44.
[0041] In order to accurately adjust the rotation angle of the straightening roller 34, in this embodiment, as Figure 5 and Figure 6 shown, it further includes a torque sensor 5 and a central control unit. There are two torque sensors 5 which are respectively installed on the upper straightening assembly 3 and the lower straightening assembly 3. The torque sensor 5 is installed on the rotating shaft 31. Among them, one end of the torque sensor 5 is fixedly connected to the rotating shaft 31, the other end of the torque sensor 5 is fixedly connected to the positioning seat 32, and the torque sensor 5 and the first motor 41 are both electrically connected to the central control unit.
[0042] It should be noted here that the first motor 41 is a stepping motor. When the angle of the straightening roller 34 needs to be adjusted, the first motor 41 drives the worm gear 43 to rotate through the worm 42, and then drives the rotating shaft 31 to twist. Since the steel bar 6 is clamped in the straightening groove 341 of the straightening roller 34, when the straightening roller 34 twists, the inner wall of the straightening groove 341 abuts against the peripheral wall of the steel bar 6. Then, the torque applied by the straightening roller 34 to the steel bar 6 is detected by the torque sensor 5. The torque sensor 5 transmits the torque signal to the central control unit and judges the magnitude of the torque. When the torque reaches the standard range, the central control unit controls the first motor 41 to stop working at this time.
[0043] In order to realize the rotation of the straightening frame 21, in this embodiment, as Figure 3 shown, the driving mechanism includes a second motor 71, a pulley set 72 and a transmission belt 73. Among them, the second motor 71 is fixedly installed on the frame 1. One pulley in the pulley set 72 is fixedly connected to the output shaft of the second motor 71, and the other pulley in the pulley set 72 is fixedly connected to the feeding pipe orifice 211. Among them, the transmission belt 73 is sleeved on the outside of the pulley set 72.
[0044] In order to realize the traction of the steel bar 6, in this embodiment, as Figure 1 and Figure 2As shown, the traction assembly 8 includes a positioning wheel 81, a clamping wheel 82, and a motor for driving the rotation of the positioning wheel 81. It also includes a gap adjustment handle 83 for adjusting the relative position between the clamping wheel 82 and the positioning wheel 81. The positioning wheel 81 is rotatably installed on the frame 1, the clamping wheel 82 is slidably installed on the frame 1, the clamping wheel 82 can slide along the radial direction of the positioning wheel 81, and the gap adjustment handle 83 is adapted to the clamping wheel 82 for adjusting the position of the clamping wheel 82.
[0045] With the above arrangement, before the installation of the steel bar 6, the gap between the clamping wheel 82 and the positioning wheel 81 is adjusted by using the gap adjustment handle 83, so that the steel bar 6 can pass through the gap between the clamping wheel 82 and the positioning wheel 81. After the installation of the steel bar 6 is completed, the position of the clamping wheel 82 is adjusted again to clamp the steel bar 6. By driving the rotation of the positioning wheel 81 by the motor, the steel bar 6 can be pushed forward, thereby realizing the traction of the steel bar 6.
[0046] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.
Claims
1. A steel bar straightening machine, comprising a frame (1), a straightening frame (21) rotatably arranged on the frame (1) and a driving mechanism for driving the straightening frame (21) to rotate at a high speed. Feeding pipe orifices (211) and discharging pipe orifices (212) for the steel bars (6) to pass through are respectively arranged on two side walls of the straightening frame (21). A traction assembly (8) located at the end of the discharging pipe orifice (212) is further arranged on the frame (1), and it is characterized in that: The inner wall of the straightening frame (21) is provided with several groups of straightening components (3) distributed along the length direction of the steel bar (6). A straightening roller (34) is provided on the straightening component (3). A straightening groove (341) with a V-shaped opening is provided on the peripheral wall of the straightening roller (34). The side wall of the straightening groove (341) abuts against the peripheral wall of the steel bar (6). It also includes an adjusting component (4) for adjusting the straightening component (3) to rotate by an angle.
2. A steel bar straightening machine according to claim 1, characterized in that: The straightening component (3) further includes a rotating shaft (31), a positioning seat (32) and a positioning shaft (33). The straightening roller (34) is rotatably connected to the positioning seat (32) through the positioning shaft (33). The rotating shaft (31) is fixedly connected to the positioning seat (32), and the rotating shaft (31) is rotatably connected to the straightening frame (21).
3. A steel bar straightening machine according to claim 2, characterized in that: The adjusting component (4) includes a first motor (41), a worm (42) and a worm gear (43). The worm gear (43) is fixedly connected to the rotating shaft (31). The first motor (41) is fixedly installed on the straightening frame (21). The output shaft of the first motor (41) is fixedly connected to the worm (42), and the worm (42) meshes with the worm gear (43).
4. A steel bar straightening machine according to claim 3, characterized in that: It also includes a torque sensor (5) and a central control unit. One end of the torque sensor (5) is fixedly connected to the rotating shaft (31), and the other end of the torque sensor (5) is fixedly connected to the positioning seat (32). The torque sensor (5) and the first motor (41) are both electrically connected to the central control unit.
5. A steel bar straightening machine according to claim 4, characterized in that: The first motor (41) is a stepping motor.
6. A steel bar straightening machine according to claim 2, characterized in that: Two groups of limiting retaining rings (311) are fixedly provided on the peripheral wall of the rotating shaft (31). The limiting retaining rings (311) are located on both sides of the straightening frame (21) and clamp the straightening frame (21). The end wall of the limiting retaining ring (311) abuts against the straightening frame (21).
7. A steel bar straightening machine according to claim 1, characterized in that: A support seat (11) is fixedly installed on the frame (1). The feed pipe orifice (211) and the discharge pipe orifice (212) on the straightening frame (21) are both connected to the support seat (11) through bearings.
8. A steel bar straightening machine according to claim 1, characterized in that: The driving mechanism includes a second motor (71), a pulley set (72) and a transmission belt (73). The second motor (71) is fixedly installed on the frame (1). One of the pulleys of the pulley set (72) is fixedly installed on the feed pipe orifice (211) or the discharge pipe orifice (212). The other pulley of the pulley set (72) is fixedly installed on the output shaft of the second motor (71). The transmission belt (73) is sleeved on the outer sides of the two pulleys.
9. A steel bar straightening machine according to claim 1, characterized in that: A protective cover (10) is also rotatably installed on the frame (1). The straightening frame (21) is covered under the protective cover (10).
10. A steel bar straightening machine according to claim 1, characterized in that: The traction component (8) includes a positioning wheel (81), a clamping wheel (82) and a gap adjusting handle (83). The positioning wheel (81) is rotatably installed on the frame (1). The clamping wheel (82) is slidably connected to the frame (1) along the radial direction of the positioning wheel (81). The gap adjusting handle (83) is used to adjust the position of the clamping wheel (82). It also includes a motor for driving the positioning wheel (81) or the clamping wheel (82) to rotate.