A bent steel bar straightening device for electric power construction accessories

Abstract

The present invention discloses a bent steel bar straightening device for electric power construction accessories, which relates to the technical field of steel bar straightening, and comprises two perpendicular straightening wheel groups arranged on a frame, wherein the two straightening wheel groups each comprise a plurality of wheel train units rotatably connected in sequence, wherein one straightening wheel group is rotatably arranged relative to the frame along a conveying path for straightening steel bars so as to be able to rotate to a state parallel to the other straightening wheel group, and the two straightening wheel groups can be bent together into an arc-shaped structure adapted to the bent steel bars. Each wheel train unit comprises a support rod and two rollers, wherein the spacing between the two rollers is adjustable, and the support rods between two adjacent wheel train units are rotatably connected to each other. There is no need to pre-straighten the front section of the bent steel bar with the aid of other straightening tools, but the two straightening wheels are adjusted to form an arc-shaped structure to adapt to the bent steel bar, thereby making it very convenient to allow the bent steel bar to pass into the straightening wheel group, which is simple and practical.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar straightening, in particular to a bent steel bar straightening device for electric power construction accessories. Background Art

[0002] In the field of power construction, steel bars are widely used as an important building material. However, steel bars are usually transported and stored in a bent and coiled manner. During construction and use, the steel bars need to be straightened.

[0003] In traditional steel bar straightening methods, such as CN220112205U, CN204770355U and other patents, some small projects are mostly manual operations. Workers rely on experience and simple tools to straighten the bent steel bars. Of course, this method is not only inefficient, but also difficult to ensure the straightening effect, and is prone to problems such as incomplete straightening or over-straightening.

[0004] In addition, some steel bar straightening equipment can also be used to straighten the steel bars, such as CN220005770U, CN214263674U, CN221289342U, CN202824465U and other patents. The bent steel bars are sequentially fed into two sets of perpendicular straightening wheel groups for roller pressing to straighten the steel bars. The cooperation of multiple straightening wheel groups makes the steel bar straightening effect good and is widely used. However, there are also some shortcomings: in the initial stage of the steel bar straightening operation, the front section of the coiled and bent bundled steel bars is also bent, and it is difficult to directly pass through the straightening wheel group. It is very difficult to operate if it is forced to pass directly. Usually, a simple manual straightening tool is required to roughly straighten the front section of the bent steel bar in advance so that the front section of the steel bar can barely pass through the straightening wheel group. This also makes these straightening equipment not very convenient to use and needs to be used in conjunction with other straightening tools. Summary of the invention

[0005] The purpose of the present invention is to provide a bent steel bar straightening device for electric power construction accessories to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bent steel bar straightening device for an electric power construction accessory, comprising two perpendicular straightening wheel groups arranged on a frame, and the two straightening wheel groups each include a plurality of wheel train units connected and rotated in sequence; one of the straightening wheel groups is rotatably arranged relative to the frame along a steel bar straightening conveying path so as to be able to rotate to a state parallel to the other straightening wheel group, and the two straightening wheel groups can be bent together into an arc-shaped structure adapted to the bent steel bars.

[0007] Furthermore, each wheel train unit includes a support rod and two rollers, one of which is rotatably connected to the support rod, and the other roller is slidably connected to the support rod through a sliding rod, and the spacing between the two rollers is adjustable; the support rods between two adjacent wheel train units are rotatably connected to each other.

[0008] Furthermore, an elastic member is arranged between the two rollers of each wheel train unit, and the process of the elastic member recovering its deformation drives the two rollers to separate from each other; two pressure assemblies are arranged on the frame, and the two pressure assemblies correspond one-to-one to the two straightening wheel groups; the pressure assemblies are used to drive the two rollers of each wheel train unit corresponding to the straightening wheel group to close together.

[0009] Furthermore, a guide ring is fixedly connected to the frame, and the guide ring is coaxial with the conveying path of the steel bar straightening; in the wheel system unit at one end close to the two straightening wheel groups, a positioning wheel is rotatably provided on one, and a transition wheel is provided on the other, the positioning wheel is rotatably connected to the frame, a swing arm is coaxially rotatably connected to the transition wheel, and the other end of the swing arm is coaxially rotatably connected to the guide ring.

[0010] Furthermore, it also includes a switching mechanism, which includes: a linear guide rail, which is tilted on the frame, and a wheel train unit of a straightening wheel group with a positioning wheel and away from the positioning wheel is slidably arranged on the linear guide rail; an arc guide rail, which is rotatably connected to the wheel train unit of the straightening wheel group with a transition wheel and away from the transition wheel; a two-way telescopic rod, one end of which is slidably and rotatably sleeved on the arc guide rail, and the other end is rotatably connected to the wheel train unit connected to the linear guide rail; an incomplete gear, which is fixedly connected to the swing arm and is coaxial with the guide ring; a rack, which is vertically slidably connected to the middle part of the two-way telescopic rod through a connecting rod, and can mesh with the incomplete gear during the sliding process of the rack; a linear drive unit, whose power output end is fixedly connected to the connecting rod to drive the rack to slide vertically.

[0011] Furthermore, the linear guide rail is rotatably connected to the frame, and a locking member is provided between the linear guide rail and the frame.

[0012] Furthermore, the bidirectional telescopic rod includes a sleeve rod located in the middle and inner rods located at both ends, one of the inner rods is rotatably connected to a wheel train unit connected to a linear guide rail and is slidably connected to the sleeve rod, and the other inner rod is slidably and rotatably connected to an arc guide rail and is slidably and rotatably connected to the sleeve rod.

[0013] Furthermore, it also includes a clamping wheel and a driving motor. The clamping wheel and the positioning wheel squeeze the steel bars together, and the driving motor drives the positioning wheel to rotate through a reduction gear set.

[0014] Furthermore, the linear drive unit includes a hydraulic cylinder, a pneumatic cylinder, a linear motor or an electric telescopic rod.

[0015] Furthermore, the pressure assembly includes a pressure plate, which can simultaneously abut and cooperate with the sliding rods of the corresponding gear train units of the straightening wheel set in a straight state.

[0016] In the above technical scheme, the present invention provides a bent steel bar straightening device for power construction accessories, and the two straightening wheel groups each include a plurality of wheel train units that are connected and rotated in sequence. At the beginning of the steel bar straightening operation, one of the straightening wheel groups is rotated to a state parallel to the other straightening wheel group, and then the two straightening wheel groups are bent together into an arc structure that fits the bent steel bars, and then the front section of the wound and bent bundled steel bars is easily placed into the arc structure, and then the two straightening wheel groups are straightened into a straight parallel state, and then one of the straightening wheel groups is rotated to a state perpendicular to the other straightening wheel group, and then the steel bars can be driven to move in the straightening wheel group for straightening. The present invention does not need to pre-straighten the front section of the bent steel bar with the aid of other straightening tools, but adjusts the two straightening wheels to form an arc structure to fit the bent steel bar, so that the bent steel bar can be easily inserted into the straightening wheel group, which is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the structure of two straightening wheel sets provided in an embodiment of the present invention when they are vertical Figure Ⅰ ;

[0019] Figure 2 Schematic diagram of the structure of two straightening wheel sets provided in an embodiment of the present invention when they are vertical Figure II ;

[0020] Figure 3 A front view of the structure of two straightening wheel sets provided by an embodiment of the present invention when the two straightening wheel sets are vertical;

[0021] Figure 4 A top view of the structure of two straightening wheel sets provided by an embodiment of the present invention when they are vertical;

[0022] Figure 5 A right view of the structure of two straightening wheel sets provided by an embodiment of the present invention when the two straightening wheel sets are vertical;

[0023] Figure 6 A schematic diagram of the connection structure of the positioning wheel, the clamping wheel and the wheel train unit provided in an embodiment of the present invention;

[0024] Figure 7A schematic diagram of the structure of an arc guide rail and a gear train unit provided in an embodiment of the present invention;

[0025] Figure 8 Schematic diagram of the connection structure of the guide ring, transition wheel and gear train unit provided in an embodiment of the present invention Figure Ⅰ ;

[0026] Fig. 9 Schematic diagram of the connection structure of the guide ring, transition wheel and gear train unit provided in an embodiment of the present invention Figure II ;

[0027] Fig.10 A schematic diagram of the structure of two parallel straightening wheel sets provided in an embodiment of the present invention Figure Ⅰ ;

[0028] Fig.11 A schematic diagram of the structure of two parallel straightening wheel sets provided in an embodiment of the present invention Figure II ;

[0029] Fig.12 Schematic diagram of two straightening wheel sets provided in an embodiment of the present invention forming an arc structure Figure Ⅰ ;

[0030] Fig.13 Schematic diagram of two straightening wheel sets provided in an embodiment of the present invention forming an arc structure Figure II ;

[0031] Fig.14 A front view of two straightening wheel sets provided in an embodiment of the present invention when forming an arc structure.

[0032] Description of reference numerals:

[0033] 1. Straightening wheel assembly; 1.1. Gear train unit; 1.11. Support rod; 1.12. Sliding rod; 1.13. Roller; 1.14. Elastic member; 1.2. Positioning wheel; 1.3. Transition wheel; 2. Pressure assembly; 2.1. Pressure plate; 2.2. Power element; 3. Guide ring; 4. Swing arm; 5.1. Linear guide rail; 5.2. Arc guide rail; 5.3. Bidirectional telescopic rod; 5.4. Incomplete gear; 5.5. Rack; 5.6. Linear drive unit; 6. Clamping wheel; 7. Drive motor; 8. Frame. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1-14, a bent steel bar straightening device for an electric power construction accessory provided by an embodiment of the present invention comprises two perpendicular straightening wheel groups 1 arranged on a frame 8, specifically, the wheel surfaces of the two straightening wheel groups 1 are perpendicular, and the two straightening wheel groups 1 each comprise a plurality of wheel train units 1.1 which are rotatably connected in sequence, and each wheel train unit 1.1 comprises a support rod 1.11 and two rollers 1.13, wherein one roller 1.13 is rotatably connected to the support rod 1.11, and the other roller 1.13 is slidably connected to the support rod 1.11 through a sliding rod 1.12, and the spacing between the two rollers 1.13 is adjustable, and an annular groove for accommodating steel bars is provided on the circumferential side surfaces of the two rollers 1.13, and when the two rollers 1.13 are closed together, the annular grooves on the two rollers 1.13 form a circular groove channel between the two rollers 1.13 for the steel bars to pass through. An elastic member 1.14 is arranged between the two rollers 1.13. The elastic member 1.14 recovers its deformation and drives the roller 1.13 on the slide bar 1.12 to slide and separate relative to the roller 1.13 on the support rod 1.11. The elastic member is preferably a compression spring, which is movably sleeved on the slide bar 1.12. One end of the compression spring abuts against the support rod 1.11 and the limit ring on the slide bar 1.12. The support rods 1.11 between two adjacent wheel train units 1.1 are rotatably connected to each other. One of the straightening wheel groups 1 is rotatably arranged relative to the frame 8 along the conveying path of the steel bar straightening, so that it can rotate to a state parallel to the other straightening wheel group 1. The parallel state here is relative to the vertical state in front, specifically refers to the wheel surfaces of the two straightening wheel groups 1 being parallel or coplanar. Regardless of the vertical state or the parallel state, the channels for conveying the straightened steel bars of the two straightening wheel groups 1 are coaxial (colinear), or the conveying paths in the two straightening wheel groups 1 during the steel bar straightening process are colinear. Specifically, a guide ring 3 is fixedly connected to the frame 8, and the guide ring 3 is coaxial with the conveying path of the steel bar straightening. The guide ring 3 has an opening, which is an incomplete circular ring, such as a semicircular structure. The opening is for the convenience of placing the complete steel bar into the straightening wheel set 1. In the wheel train unit 1.1 at one end of the two straightening wheel sets 1 close to each other, a positioning wheel 1.2 is rotatably provided on one, and a transition wheel 1.3 is provided on the other. The positioning wheel 1.2 is rotatably connected to the frame 8, and a swing arm 4 is coaxially rotatably connected to the transition wheel 1.3. The other end of the swing arm 4 is slidably matched with the annular slide groove on the guide ring 3 through a cylindrical rod to realize the coaxial rotation connection between the swing arm 4 and the guide ring 3, so that the straightening wheel set 1 with the transition wheel 1.3 can be rotated as a whole relative to the frame 8 with the conveying path of the steel bar straightening as the axis.

[0036] Two pressure assemblies 2 are arranged on the frame 8. The two pressure assemblies 2 correspond to the two straightening wheel sets 1 one by one, that is, one pressure assembly 2 corresponds to one straightening wheel set 1. The pressure assembly 2 is used to drive the two rollers 1.13 of each wheel train unit 1.1 of the corresponding straightening wheel set 1 to close together. The pressure assembly 2 specifically includes a pressure plate 2.1 and a power element 2.2. The power element 2.2 can drive the pressure plate 2.1 to abut and cooperate with the sliding rod 1.12 of each wheel train unit 1.1 of the corresponding straightening wheel set 1 in a straight state at the same time, thereby overcoming the elastic force of the corresponding elastic member 1.14 to make the two rollers 1.13 of each wheel train unit 1.1 close synchronously to squeeze the steel bar. Alternatively, a pressure assembly 2 includes a plurality of power elements 2.2, each power element 2.2 corresponds one-to-one to each wheel train unit 1.1 of the corresponding straightening wheel set 1, and no elastic member 1.14 is configured. The power element 2.2 can drive the slide rod 1.12 of the corresponding wheel train unit 1.1 to slide relative to the support rod 1.11, thereby enabling the adjustment of the spacing between the two rollers 1.13 of the wheel train unit 1.1. For example, the power element 2.2 adopts an electric push rod, the seat of the electric push rod is fixedly connected to the support rod 1.11, and the push rod of the electric push rod is fixedly connected to the slide rod 1.12.

[0037] When the two straightening wheel sets 1 are in a parallel state, the two straightening wheel sets 1 can be bent together into an arc structure that is basically adapted to the bent steel bar through their respective mutually rotatably connected wheel train units 1.1. That is, at the beginning of the steel bar straightening operation (e.g. Figure 1-5 ), rotate one of the straightening wheel sets 1 to a state parallel to the other straightening wheel set 1 (such as Figure 10-11 ), and then bend the two straightening wheel groups 1 together into an arc-shaped structure adapted to the bent steel bars (such as Figure 12-14 ), each elastic member 1.14 separates the two rollers 1.13 of each wheel train unit 1.1 from each other, and then easily puts the front section of the wound and bent bundled steel bars into the arc structure, and then straightens the two straightening wheel sets 1 into a straight parallel state, so that the bending degree of the steel bars is alleviated a little, and then one of the straightening wheel sets 1 is rotated to a state perpendicular to the other straightening wheel set 1, and the two pressure components 2 overcome the elastic force of the elastic member 1.14 to press the corresponding straightening wheel set 1, and the two rollers 1.13 of each wheel train unit 1.1 are closed together to straighten the steel bars, and then the steel bars can be driven to move in the straightening wheel set 1 for straightening. There is no need to use other straightening tools to pre-straighten the front section of the bent steel bars, but by adjusting the two straightening wheel sets 1 into an arc structure to adapt to the bent steel bars, it is very convenient to make the bent steel bars pass into the straightening wheel set 1, which is simple and practical.

[0038] Each of the above-mentioned steps can be realized by setting a corresponding driving source, but the operation is cumbersome, too many driving sources are costly, and the cost of introducing programming automation control technology is relatively high. Therefore, in order to optimize the operation and realize low-cost automation, the present invention provides a new technical solution, that is, it also includes a switching mechanism for realizing the form conversion of two straightening wheel groups 1, the switching mechanism includes a linear guide 5.1, an arc guide 5.2, a two-way telescopic rod 5.3, an incomplete gear 5.4, a rack 5.5 and a linear drive unit 5.6, wherein the linear guide 5.1 is tiltedly arranged on the frame 8, and the gear train unit 1.1 of the straightening wheel group 1 with the positioning wheel 1.2 and away from the positioning wheel 1.2 is slidably arranged on the linear guide 5.1. The arc guide 5.2 is rotatably connected to the gear train unit 1.1 of the straightening wheel group 1 with the transition wheel 1.3 and away from the transition wheel 1.3, and the arc guide 5.2 is coaxially arranged with the guide ring 3. Both ends of the bidirectional telescopic rod 5.3 can be telescoped independently, one end of which is slidably and rotatably sleeved on the arc guide rail 5.2, and the other end is rotatably connected to the wheel train unit 1.1 connected to the linear guide rail 5.1. The bidirectional telescopic rod 5.3 specifically includes a sleeve rod located in the middle and inner rods located at both ends, one of the inner rods is rotatably connected to the wheel train unit 1.1 connected to the linear guide rail 5.1 and is slidably connected to the sleeve rod, the other inner rod is slidably and rotatably connected to the arc guide rail 5.2, and is slidably and rotatably connected to the sleeve rod, and a circular ring slider adapted to the inner wall of the sleeve rod is provided on the inner rod. The incomplete gear 5.4 is fixedly connected to the swing arm 4, and the incomplete gear 5.4 is coaxial with the guide ring 3. The rack 5.5 is vertically slidably connected to the vertical sleeve fixedly connected to the middle part (i.e., the sleeve rod) of the two-way telescopic rod 5.3 through a connecting rod. The rack 5.5 can mesh with the incomplete gear 5.4 during sliding. The power output end of the linear drive unit 5.6 is fixedly connected to the connecting rod to drive the rack 5.5 to slide vertically.

[0039] When the two straightening wheel sets 1 are in a vertical state (such as Figure 1-5 ), the two pressure components 2 both drive the corresponding pressure plates 2.1 to disengage from the pressure on the corresponding slide rods 1.12, so that the two rollers 1.13 of each gear train unit 1.1 are separated from each other, and the power output end of the linear drive unit 5.6 lifts the connecting rod upward, so that the rack 5.5 moves upward, and the rack 5.5 meshes with the incomplete gear 5.4, so that the incomplete gear 5.4 rotates along the guide ring 3, and the incomplete gear 5.4 drives the swing arm 4 and the straightening wheel group 1 with the swing arm 4 to rotate 90 degrees around the guide ring 3 until they are parallel to the other straightening wheel group 1. At this time, the connecting rod abuts against the sleeve rod (that is, the top of the sleeve) of the two-way telescopic rod 5.3 (such as Figure 10-11), the power output end of the linear drive unit 5.6 continues to lift the connecting rod upward to make the two-way telescopic rod 5.3 move vertically upward, and the two-way telescopic rod 5.3 drives the separated wheel train units 1.1 of the two straightening wheel groups 1 to be lifted upward together. Under the guidance of the linear guide rail 5.1, the two straightening wheel groups 1 are bent into an arc structure (such as Figure 12-14 ), put the front section of the wound and bent bundle of steel bars into the arc structure (if the pressure component 2 adopts the solution that each wheel train unit 1.1 is respectively equipped with a power element 2.2, then at this time, the two rollers 1.13 of the corresponding wheel train unit 1.1 are driven by the pressure component 2 to close together to compress the steel bars), and then the power output end of the linear drive unit 5.6 starts to move downward to drive the bidirectional telescopic rod 5.3 to return downward, and under the guidance of the linear guide rail 5.1, the two straightening wheel groups 1 are straightened into a parallel state on a straight line, and the power output end of the linear drive unit 5.6 continues to move downward, and within the restriction of the linear guide rail 5.1 The straightening wheel set 1 and the two-way telescopic rod 5.3 can be prevented from moving further downward, so that the power output end only drives the rack 5.5 to continue moving downward, and the rack 5.5 begins to engage with the incomplete gear 5.4, so that the incomplete gear 5.4 rotates along the guide ring 3. The incomplete gear 5.4 drives the swing arm 4 and the straightening wheel set 1 with the swing arm 4 to rotate 90 degrees in the opposite direction around the guide ring 3 until it is perpendicular to the other straightening wheel set 1, and then each pressure component 2 drives the two rollers 1.13 of each wheel train unit 1.1 of the corresponding straightening wheel set 1 to close together to straighten the steel bars, so that the bent steel bars can be easily inserted into the straightening wheel set 1 and straightened, which is convenient and practical.

[0040] A driving motor 7 is also provided on the frame 8, and the driving motor 7 drives the positioning wheel 1.2 to rotate through a reduction gear set. The sliding rod 1.12 of the wheel train unit 1.1 with the positioning wheel 1.2 is rotatably connected to a clamping wheel 6 through a fixed rod. The clamping wheel 6 can squeeze the steel bars together with the positioning wheel 1.2, thereby realizing the traction and transportation of the steel bars.

[0041] The linear drive unit 5.6 and the power element 2.2 in the present invention can both be hydraulic cylinders, air cylinders, linear motors or electric telescopic rods.

[0042] In addition, in addition to being fixedly connected to the frame 8 by welding, riveting or mortise and tenon connection, the linear guide 5.1 can also be rotatably connected to the frame 8, and a locking member is provided between the linear guide 5.1 and the frame 8, so that the inclination angle of the linear guide 5.1 can be adjusted, and the bending degree of the arc structure formed by the two straightening wheel groups 1 can be changed to adapt to steel bars with different curling diameters.

[0043] In use, if the end of the bent steel bar is not aligned with the end of the curved structure when it is placed in the curved structure, the operation can continue. It is only necessary to drive the positioning wheel to reversely drive the unstraightened end of the steel bar to the straightening wheel group for straightening by the driving motor 7 (such as a servo motor) during the subsequent straightening. Of course, if the configured driving motor 7 can only rotate in one direction and cannot be reversed, it is only necessary to cut off the unstraightened end of the steel bar.

[0044] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bent steel bar straightening device for electric power construction accessories, comprising two perpendicular straightening wheel sets arranged on a frame, characterized in that: The two straightening wheel sets each include a plurality of gear train units that are rotatably connected in sequence; One of the straightening wheel assemblies is rotatably arranged relative to the frame along the conveying path for straightening the steel bars so as to be able to rotate to a state parallel to the other straightening wheel assembly. The two straightening wheel assemblies can be bent together into an arc-shaped structure adapted to the bent steel bars.

2. The bent steel bar straightening device for electric power construction accessories according to claim 1 is characterized in that: Each wheel train unit includes a support rod and two rollers, one of which is rotatably connected to the support rod, and the other roller is slidably connected to the support rod through a sliding rod, and the distance between the two rollers is adjustable; The supporting rods between two adjacent gear train units are rotatably connected to each other.

3. The bent steel bar straightening device for electric power construction accessories according to claim 2 is characterized in that: An elastic member is arranged between the two rollers of each wheel train unit, and the elastic member drives the two rollers to separate from each other during the process of restoring the deformation; Two pressure assemblies are arranged on the frame, and the two pressure assemblies correspond to the two straightening wheel assemblies one by one; The pressure assembly is used to drive the two rollers of each wheel train unit of the corresponding straightening wheel set to close together.

4. The bent steel bar straightening device for electric power construction accessories according to claim 1, characterized in that: A guide ring is fixedly connected to the frame, and the guide ring is coaxial with the conveying path of the steel bar straightening; In the wheel train unit at one end where the two straightening wheel groups are close to each other, one is rotatably provided with a positioning wheel, and the other is provided with a transition wheel, the positioning wheel is rotatably connected to the frame, a swing arm is coaxially rotatably connected to the transition wheel, and the other end of the swing arm is coaxially rotatably connected to the guide ring.

5. The bent steel bar straightening device for electric power construction accessories according to claim 4, characterized in that: It also includes a switching mechanism, which includes: A linear guide rail is tilted on the frame, and a wheel train unit of a straightening wheel group with a positioning wheel away from the positioning wheel is slidably arranged on the linear guide rail; An arc-shaped guide rail is rotatably connected to a wheel train unit of a straightening wheel set having a transition wheel and away from the transition wheel; A bidirectional telescopic rod, one end of which is slidably and rotatably sleeved on the arc guide rail, and the other end of which is rotatably connected to a gear train unit connected to the linear guide rail; An incomplete gear is fixedly connected to the swing arm and is coaxial with the guide ring; A rack is vertically slidably connected to the middle of the two-way telescopic rod through a connecting rod, and can mesh with the incomplete gear during the sliding process; The linear drive unit has a power output end fixedly connected to a connecting rod for driving the rack to slide vertically.

6. The bent steel bar straightening device for electric power construction accessories according to claim 5, characterized in that: The linear guide rail is rotatably connected to the frame, and a locking piece is arranged between the linear guide rail and the frame.

7. The bent steel bar straightening device for electric power construction accessories according to claim 5, characterized in that: The bidirectional telescopic rod includes a sleeve rod located in the middle and inner rods located at both ends, wherein one inner rod is rotatably connected to a wheel train unit connected to a linear guide rail and is slidably connected to the sleeve rod, and the other inner rod is slidably and rotatably connected to an arc guide rail and is slidably and rotatably connected to the sleeve rod.

8. The bent steel bar straightening device for electric power construction accessories according to claim 5, characterized in that: It also includes a pressing wheel and a driving motor. The pressing wheel and the positioning wheel squeeze the steel bars together, and the driving motor drives the positioning wheel to rotate through a reduction gear set.

9. The bent steel bar straightening device for electric power construction accessories according to claim 5, characterized in that: The linear drive unit includes a hydraulic cylinder, a pneumatic cylinder, a linear motor or an electric telescopic rod.

10. The bent steel bar straightening device for electric power construction accessories according to claim 3, characterized in that: The pressure assembly comprises a pressure plate, which can simultaneously abut and cooperate with the sliding rods of the corresponding gear train units of the straightening wheel set in a straight state.

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